More from Explorations of an Ecologist
The topography of Colombia is dominated by the Andes. While manifested as a single mountain range from Ecuador southwards, the mountains split into three ranges (or cordilleras) near the Colombia/Ecuador border, and these three ranges span the length of Colombia from this southern border towards Venezuela in the northeast. Despite the vast amount of territory contained by these cordilleras (and their associated river valleys), around half of Colombia consists of flat lowlands, especially east of the mountains. Burrowing Owls In general, this eastern half of Colombia consists of the humid Amazon rainforest to the south and drier plains to the north. These plains (los llanos in Spanish) are productive areas for raising cattle and other livestock, similar to the plains found in parts of Argentina, Paraguay, Uruguay, and Brazil in the south of the continent. Forests are more limited and the land is a mosaic of seasonal wetlands, open savannahs, palm swamps and gallery forest along the productive rivers. After the conclusion of the main tour, four travellers joined local guide Cris and I for a visit to these eastern plains. We would be staying at Juan Solito Ecolodge, located within a massive ranch called Hato La Aurora. Cattle roam across the landscape, coexisting with the abundant wildlife that thrives in this region. The ecological health of this ranch is relatively high since the cattle are at a low density and all of the original forest cover has been preserved. Jaguars in particular can be found in good numbers while Green Anacondas are frequently observed in the numerous wetlands dotting the property. Orinoco Geese Sharp-tailed Ibis Our visit would be coinciding with the dry season. While at certain times of the year the wetlands stretch across the landscape, at this time of year they are much reduced in size. This concentrates the many mammals, reptiles and birds that rely on these life-giving wetlands. Capybaras (Hydrochoerus hydrochaeris) Scarlet Ibises The temperatures are very high here in the lowlands and so we prioritized being out early and late in the day when species are the most active. Dawn in this region is spectacular with nearly every bird being vocal and we typically crossed the 100 species threshold each day by 8 or 9 AM. Burnished-buff Tanager Black-crested Antshrike Masked Cardinal Double-striped Thick-knee Nacunda Nighthawk Several birds found here are endemic to the plains of northeastern Colombia and western Venezuela, including Pale-headed Jacamar, Venezuelan Troupial, Sharp-tailed Ibis, Crestless Curassow and White-bearded Flycatcher. We succeeded with all of them, with the jacamar, flycatcher and ibis easily found around the lodge! Pale-headed Jacamar White-bearded Flycatcher Venezuelan Troupial Much of our exploration was done from a safari-style pick-up truck that had two rows of padded seats in the bed and a roof sheltering us from the sun. Our truck We followed dirt tracks throughout the vast expanses of the ranch, visiting various wetlands and forest habitats. The wetland birds were especially numerous - seven species of ibis, hundreds of White-faced and Black-bellied Whistling-Ducks, herds of Capybaras, innumerable herons, egrets and jacanas, and much more. In our four-night stay we found around 180 bird species. Scarlet Macaw Large-billed Tern Capybara (Hydrochoerus hydrochaeris) Roseate Spoonbill We kept an eye out for reptiles and encountered quite a few species, including a couple of big targets, figuratively and literally! We found an adult Orinoco Crocodile (along with dozens of Spectacled Caimans). The Orinoco Crocodile is a critically endangered species endemic to this ecoregion, and only a few hundred remain in the wild. Orinoco Crocodile (Crocodylus intermedius) Orinoco Crocodile (Crocodylus intermedius) The other "big" target was Green Anaconda, and we succeeded with finding three individuals! Most impressive was a huge female, likely over 5 meters in length, that was mating with a much smaller male in a shallow wetland. This was, by far, the biggest snake I had ever seen. Green Anaconda (Eunectes murinus) Green Anaconda Other reptile highlights included Cryptic Golden Tegu and Savannah Side-necked Turtle. Savannah Side-necked Turtle (Podocnemis vogli) Though our main target was undoubtedly the Jaguar, I still placed the odds of finding this secretive species fairly low. We had struck out on the previous trip in 2022 and I did not want to get my hopes up. And during our first few days, we had no luck despite spending some time in some of the better areas where they are occasionally seen. Then, one afternoon as we were bumping along a dirt track, our local guide Jovani suddenly shout-whispered "Jaguar! Jaguar!". There, only 50 meters from us, was this absolutely magnificent Jaguar slinking through the grasses. The encounter lasted only around 15 seconds or so but it was unforgettable. Jaguar (Panthera onca) Jaguar (Panthera onca) The Jaguar was an exciting way to close out an amazing tour extension to the Juan Solito Ecolodge. I hope to return one day!
I have recently returned from an excellent tour to Colombia that I led for Quest Nature Tours. This was my third time guiding in Colombia, following excellent trips in 2020 and 2022. Those previous tours covered a lot of ground, in the eastern Andes near Bogotá, the Central Andes between Pereira and Medellín, and the Santa Marta Mountains and Guajira Desert located in the far north. This 2025 tour was different as we only focused on the Central Andes portion over ten days. This eliminated all of the internal flights, it cut down on driving time, and it allowed us to have more time to thoroughly explore each site. Following the main tour, I traveled to the Juan Solito Ecolodge in the northeast of the country with four of the travellers and our local guide Cris, where we had four nights in the llanos to search for a huge array of birds as well as other specialties of the region including Jaguar and Green Anaconda. Crescent-faced Antpitta Andean Cock-of-the-Rock Bar-crested Antshrike Twelve enthusiastic travellers joined Cris and I in the town of La Florida, situated a short drive from the beautiful montane forests of Otún Quimbaya. As dawn broke, a Rufous-bellied Nighthawk flew over the clearing at El Cedral, and we experienced a delicious Colombian breakfast while listening to the dawn chorus. For the rest of the morning we marvelled at mixed bird flocks and enjoyed the high diversity of this region. The Cauca Guan is an endangered species found in a small region of the central Andes of Colombia, and we succeeded with amazing views of them. We also studied White-capped Tanagers, Red-ruffed Fruitcrows, Andean Motmots and Pale-eyed Thrushes, while mixed flocks contained the endemic Multicoloured Tanager and scarce flycatchers like the Variegated Bristle-Tyrant and Bronze-olive Pygmy-Tyrant. Meanwhile, Torrent Ducks were easily found along the Río Otún which was flowing quickly after the recent rains. A feast for the senses! Cauca Guans Vettius sp. Black Phoebe Andean Motmot Red-ruffed Fruitcrow Torrent Duck We moved on to a site just west of Manizales called Hotel Tinamú Birding Nature Reserve. This is a relatively new property that I had never visited before. It consists of regenerating dry forest in an area that formerly contained coffee plantations, and the species composition is much different than the humid montane forest we had just left at Otún Quimbaya. Our comfortable rooms were located in a clearing in the forest, and active tanager and hummingbird feeders could be enjoyed from our front porches. Blue-gray Tanager Monarch (Danaus plexippus) Some of the bird specialties at Hotel Tinamú include a couple of localized species that have been trained to come into feeding stations - the Gray-headed Dove and Blue-lored Antbird (we succeeded with both). We found leks of Golden-collared Manakin and Green Hermit, while birding the road in scrubbier areas produced Colombian Speckle-breasted Wren, Bar-crested Antshrike, Ultramarine Grosbeak and, best of all, a quartet of Greyish Piculets (an endemic species to this valley) which provided incredible, "walk-away" views. Blue-lored Antbird Streaked Flycatcher Grayish Piculets One evening, I set up my moth trap in the garden which produced a nice variety of moths, rove beetles, stone flies, leafhoppers, scarabs and much more! Unidentified leafhopper (family Cicadellidae) Eois camptographata Unidentified stonefly (family Perlidae) Unidentified leafhopper (family Cicadellidae) Pelidnota prasina Oxyptera laeta We moved eastwards towards the imposing Los Nevados National Park, where several volcanoes reach high above 4000 m in elevation. Before reaching these heights, we spent two days in montane forest at different elevations: Owl's Watch at around 2600 m, and Hacienda El Bosque at 3100 m. This gave our bodies time to acclimate to the elevation differences, while it also afforded us the chance to find a high diversity of birds that we wouldn't see elsewhere on the tour. Hooded Mountain-Tanager Blue-capped Tanager At Owl's Watch we had amazing encounters with Black-billed Mountain-Toucans and an endemic Brown-banded Antpitta, both of which came into feeding stations. Though we dealt with persistent rain and fog this day, the birding was still very active with many species including White-throated Daggerbill, Rufous-crowned Tody-Flycatcher, a dozen hummingbird species and a recently-fledged White-capped Dipper. Black-billed Mountain-Toucan Long-tailed Sylph Rufous-crowned Tody-Flycatcher Hacienda El Bosque is a must-visit site for any birder in the Manizales area. This property was amazing during my first visit in 2020 and it has only been improved. The star of the show, a Crescent-faced Antpitta, is still attending a feeding station, as are Gray-breasted Mountain-Toucans, Equatorial Antpittas, Andean and Sickle-winged Guans, White-browed Spinetails, Barred Fruiteaters, Hooded Mountain-Tanagers and Grass Wrens, among other species! And to top it off, a new restaurant has been built at the upper elevations where we enjoyed one of the best lunches of the trip. Crescent-faced Antpitta Gray-breasted Mountain-Toucan Gray-breasted Mountain-Toucan Sickle-winged Guan Grass Wren Yellow-bellied Chat-Tyrant Barred Fruiteater Hummingbird diversity was high and we observed the species with the longest bill (Sword-billed Hummingbird) and the shortest bill (Purple-backed Thornbill). A distant Andean Pygmy-Owl called from up the hillside and we found a nice mixed flock as well. We all came away with many highlights and photos from Hacienda El Bosque! Sword-billed Hummingbird Rufous-breasted Chat-Tyrant Our base for the next two nights was the picturesque Termales del Ruiz hotel, situated in the upper reaches of the cloud forest at 3500 m. Not only is this hotel conveniently located to explore Los Nevados National Park, but the hummingbird feeders are very active while the birding along the roadside can be excellent. And of course, going for a dip in the lovely waters of the hot springs feels fantastic after a day of birding. Tawny Antpitta We lucked out with clear weather during our morning near the gates for the national park. Overlooking Los Nevados National Park This was the highest elevation that we would see on this trip at 4138 m, and it is at this site where a unique hummingbird can be found. The Buffy Helmetcrest is a specialist of the páramo habitat and Los Nevados National Park is the only place in the world where it can be sought out. The temperatures are only a few degrees above freezing every single night of the year, and this solidly-built hummingbird can withstand these tough environmental conditions and even thrive in them. We experienced amazing views of a male Buffy Helmetcrest, along other high-elevation specialists like Andean Tit-Spinetail, Tawny Antpitta and Viridian Metaltail. Buffy Helmetcrest We explored some other habitats slightly lower down on this mountain. An alpine lake held several Andean Teals and Andean Ducks, while we successfully called in a Páramo Tapaculo to the roadside, allowing great views for everyone. Mixed flocks in the higher montane forest held species like Blue-backed Conebill, Great Sapphirewing, Scarlet-bellied Mountain-Tanager and Crowned Chat-Tyrant, while we also heard Ocellated Tapaculos and Equatorial Antpittas. Unfortunately, the scarce Rufous-fronted Parakeets mostly eluded us, as we had a quick flyover in the fog and nothing more. The plant life in the páramo is surprisingly diverse and we encountered many interesting and showy species. Páramo Tapaculo Senecio formosus Barberry (Berberis sp.) Eccremocarpus viridis We left the cool temperatures of the high Andes behind and ventured northward along the Cauca Valley to the town of Jardín, our base for the next three nights. Situated on the eastern flank of the western Andes, the verdant, epiphyte-laden forest is one of the few strongholds of the endangered Yellow-eared Parrot. This species is an example of a conservation success story in Colombia. Mainly because of habitat restoration (including the regeneration of wax palms, its nesting tree) and an extensive education campaign, the numbers of this beautiful parrot have rebounded from just 81 known individuals in 1999 to around 2,600 individuals today. We were treated to great flyover views of at least 25 individuals; a welcome sight especially considering the previous low numbers of this species. We also succeeded with the endemic Chamí Antpitta as well as a Chestnut-naped Antpitta, while the meals that we were served by a local family at El Roble were some of the best of the trip! Chestnut-naped Antpitta Chamí Antpitta Yellow-eared Parrots Buff-tailed Coronet The town of Jardín is also home to two avian spectacles that have to be seen to be believed. For several decades, a lekking ground for the Andean Cock-of-the-Rock has persisted on the outskirts of town. Males strut their stuff, showcasing their slick dance moves and outrageous plumage for the more subdued females. She watches quietly from her perch, her discerning eye picking the male that is most fit to be the father of her future offspring. Watching this exhibition at arms-length was cited as a trip highlight for everyone. Andean Cock-of-the-Rock Moustached Puffbird The other spectacle that we were lucky to witness was a nesting area for the Oilbird. The Oilbird is one of the strangest bird species found in the Neotropics. Though superficially resembling a nightjar, they are in fact the only living member of the family Steatornithidae as well as the order Steaornithiformes. Oilbirds are unique in that they are a nocturnal frugivore, while they also use a primitive form of echolocation! Oilbirds roost somewhere secluded during the day, often deep in a cave or within an inaccessible gorge next to a flowing river, and at night they get to work. Oilbirds fly around in search of lipid-rich oil palms or tropical laurel fruits. They are well-adapted to this as they possess extremely large, sensitive eyes, while they also produce audible clicking sounds which act as a sort of echolocation. Their behaviour is more like a fruit bat than any bird. Oilbirds Oilbirds Crossing the river near Jardín, Antioquia, Colombia To see these Oilbirds, we embarked on a long walk deep into the gorge of a montane river, then crossed the river via a swinging bridge (while using a safety harness) to get to the site opposite the Oilbird nests. In case you were wondering, the nests are made entirely out of bird droppings. It was a privilege to spend some time near these unique birds! At this site we also enjoyed a very productive feeder setup that hosted several other endemic Colombian birds - the Red-bellied Grackle and Colombian Chachalaca. Red-bellied Grackle Green Jay Colombian Chachalaca On our final day of the tour we began with a morning of exploration in the dry forests next to the Cauca River near the town of Bolombolo. The species composition here was different, yet again. We had two main bird targets here, both being endemic species to this valley, including the Apical Flycatcher and Antioquia Wren. We succeeded with both while we also found Scarlet-fronted Parakeet, Moustached Puffbird, Black-striped Sparrow and Greyish Piculet, along with dozens of butterflies. Apical Flycatcher Cydno Longwing (Heliconius cydno) Before arriving at our hotel in Medellín for our farewell dinner, we had one final stop in store. La Romera National Reserve is one of the best places in the world to see the Colombian near-endemic Yellow-headed Manakin. It took a while but eventually we were all awarded with excellent views of this difficult species. Yellow-headed Manakin And in the final few minutes, as we were getting ready to leave, I finally found a snake for the group, an Equatorial Mussarana which was even a new species for yours truly. An excellent way to wrap up a hugely successful tour! Equatorial Mussurana (Clelia equatoriana) Equatorial Mussurana (Clelia equatoriana) My next post will document our tour extension to the Juan Solito Ecolodge in the northeast of the country.
February 27, 2024 The rains fell sometime after we went to bed and continued through the night, infiltrating our dreams. Light rain was still dripping from the trees as we awoke, and the dawn chorus was proportionally muted. We had a quick breakfast and by 6:30 were on the small trail system behind the lodge. The mosquitoes were ferocious, and repellent only temporarily thinned them out, providing just a brief reprieve for a few minutes. Birding was slow given the gloomy conditions but we tried our best to turn up a Blue-cheeked Jacamar or Rufous-necked Puffbird without success. Moises's only strategy was to loudly blast tapes of both species on repeat, so we weren't really surprised with the lack of a response. These types of tactics usually result in the target species being "taped out" in short order, and this is the main place at Muyuna Lodge where most birders try to find these respective species. However, we finally connected with a Varzea Thrush. The views were brief as it was skittish in the understory, but we heard it singing and calling and I managed a few recordings. We were also pleased to find a pair of Black-throated Antbirds. This species prefers dense understory growth, often near streams in the forest, and it is never easy to see well or photograph. I managed a few record shots of both the male and the female, representing the first meagre photos I have obtained of this species. If only my autofocus was working then I would have come away with much better results. Black-throated Antbird (male) - Muyuna Lodge, Loreto, Peru Black-throated Antbird (female) - Muyuna Lodge, Loreto, Peru Later, we tracked down a pair of Coppery Titi Monkeys (Plecturocebus cupreus) that were duetting at the edge of the forest. In Amazonia there are numerous species of titi monkeys, each separated by range. This species was a new one for us - they are only found in the western Amazon basin in Peru and western Brazil. Coppery Titi (Plecturocebus cupreus) - Muyuna Lodge, Loreto, Peru While the persistent rain may have made birding a little tough, there are certain other types of animals that thrive in these conditions. One particular group are the coral snakes. Laura and I have been fortunate over the years to have encountered numerous coral snakes - we are now up to seven species - but each encounter is never predictable and is to be cherished. Sometimes, heavy rains slightly increase the odds of encountering one. These snakes are typically fossorial, meaning that they spend much of their time living and hunting underground. Heavy rains may temporarily flood them out and bring them to the surface. All three of us noticed the snake around the same time. "Coral snake!" Evidently the night's rains had stimulated this one to leave its subterranean retreat. This was a subadult Western Ribbon Coralsnake (Micrurus helleri). It was quite feisty and tried to make a quick escape, though we cornered it on the trail so that we could study it for a few minutes. I managed a few poor phone photos in the dim understory, but its erratic movements and the low light levels meant that I was unable to take any good photos with my telephoto. Unfortunately, my macro lens was resting safely back in our room. Western Ribbon Coralsnake (Micrurus helleri) - Muyuna Lodge, Loreto, Peru Still, even without amazing photos we were ecstatic to have found a new species of coral snake for us! It made us forget about the hungry mosquitoes for a few minutes. Western Ribbon Coralsnake (Micrurus helleri) - Muyuna Lodge, Loreto, Peru Next up were these photogenic Cream-colored Woodpeckers near their nesting cavity. The diversity of colours found in Neotropical woodpeckers is high, and the Cream-colored is a flashy one. Cream-colored Woodpeckers - Muyuna Lodge, Loreto, Peru We also turned up this interesting little lizard. This is Cercosaurus argulus, the Elegent Eyed Lizard. This is a rarely seen semi-arboreal species, but we were fortunate in that this individual was foraging in the leaf litter. This is a shade-loving lizard that is rarely found in open sunny conditions. Elegant Eyed Lizard (Cercosaurus argulus) - Muyuna Lodge, Loreto, Peru Laura spotted this Blue-lipped Tree Lizard (Plica umbra) perched on top of a tree buttress. This species seems to be relatively common and easy to encounter; they are usually perched 1-2 meters off the ground and are somewhat conspicuous. Blue-lipped Tree Lizard (Plica umbra) - Muyuna Lodge, Loreto, Peru By mid-morning we returned to the lodge. The sun was now trying to burn through the thick clouds and bird activity was increasing. It was time to head out onto the water for a couple of hours before lunch time. We were still on the lookout for a few species - namely, the Purple-throated Cotinga - but secondary targets included Wing-barred Seedeater and Gray-chested Greenlet. We slowly cruised along the quiet waterways, scanning the tops of the lush vegetation for perched cotingas. Alas, we were unsuccessful with the primary target. However, luck was on our side with the other two species. We heard a singing Wing-barred Seedeater and while trying to to track it down, a Gray-chested Greenlet vocalized from the other side of the wetland! Quickly, both species were "in the bag". Wing-barred Seedeater - Muyuna Lodge, Loreto, Peru Wing-barred Seedeater - Muyuna Lodge, Loreto, Peru The Gray-chested Greenlet is a widespread species of Amazonia, usually living in flooded forest. It is more localized in the western part of its range which may explain why Laura and I had never seen one before. Gray-chested Greenlet - Muyuna Lodge, Loreto, Peru We headed back to the lodge, our spirits lifted after a productive boat trip. Laura and I were eager to continue exploring, especially since the morning's birding had been relatively slow with all the rain. Bird activity was still high even at midday as the clouds hadn't disappeared, but Moises was not at all eager to head back out. It took some convincing to have him relent and agree to a 2 PM departure time, instead of the usual 3 PM. The joys of having to be stuck with a guide, especially one who was just going through the motions. Riverside habitat - Muyuna Lodge, Loreto, Peru Our strategy this afternoon was similar to the pre-lunch boat trip. We would cruise slowly along vegetation-choked waterways, scanning the treetops for the cotinga. We had a brief moment of excitement when a female cotinga was found feeding in a fruiting tree. Alas, my terrible record photos confirmed that it was "just" a Plum-throated Cotinga. A great bird, but not the one we were hoping for! Plum-throated Cotinga (female) - Muyuna Lodge, Loreto, Peru Even without a Purple-throated Cotinga we really enjoyed our time on the water. Birding was relaxed and productive, with hardly a dull moment. We tallied nearly double-digit species of parrot-types, several Muscovy Ducks, many ant-things and woodcreepers by voice, and quite a few terns, kingfishers and other birds typical of these wetland habitats. There were several Brown-throated Three-toed Sloths (Bradypus variegatus), and we discovered a Horned Screamer nest, home to a couple of baby "screamlets". Brown-throated Three-toed Sloth (Bradypus variegatus) - Muyuna Lodge, Loreto, Peru Horned Screamers - Muyuna Lodge, Loreto, Peru As the sun set we tried listening for and playing tapes of Zigzag Heron to no avail. We cruised back to the lodge at dusk. Despite the slow morning, we had still managed to tally around 130 bird species. The diversity in the Amazon is amazing! Laura and I convinced Moises to head back out for a short boat cruise after dark. This time, we did not venture too far from the lodge, focusing on the frogs that were calling from thick vegetation along the edges of the channels. Pygmy Hatchet-faced Frog (Sphaenorhynchus carneus) - Muyuna Lodge, Loreto, Peru Pygmy Hatchet-faced Frogs were one of the dominant voices. This was a new species for us, presumably because they prefer these semi-aquatic, marshy habitats that are not easy to reach (while staying dry) except by boat. Pygmy Hatchet-faced Frog (Sphaenorhynchus carneus) - Muyuna Lodge, Loreto, Peru We also noted several Dendropsophus tree frogs in the riverside vegetation as well. Some were left unidentified, though some were likely Dendropsophus triangulum, the Variable Clown Treefrog. Dendropsophus sp. - Muyuna Lodge, Loreto, Peru Variable Clown Treefrog (Dendropsophus triangulum) - Muyuna Lodge, Loreto, Peru This particular individual appears to be Dendropsophus reticulatus, the Reticulated Treefrog. Reticulated Treefrog (Dendropsophus reticulatus) - Muyuna Lodge, Loreto, Peru Of course there was a lot of other things of interest to point our flashlights at, including various insects and spiders. Below are some of the others. It was a lot of fun to take photos with my macro lens as it had working autofocus - a nice change after struggling to manual-focus with my telephoto lens during the day. Ancylometes sp. - Muyuna Lodge, Loreto, Peru Stagmatoptera binotata - Muyuna Lodge, Loreto, Peru Polka-dot Treefrog (Boana punctata) - Muyuna Lodge, Loreto, Peru Unidentified planthopper - Muyuna Lodge, Loreto, Peru Alpaida sp. - Muyuna Lodge, Loreto, Peru Cuernavaca longula - Muyuna Lodge, Loreto, Peru Tetrataenia surinama - Muyuna Lodge, Loreto, Peru We returned to the lodge not quite feeling ready for bed just yet. It was only 9 PM and, as it was our last night in the Amazon, we wanted to make the most of things. Laura and I set off on a quick night-hike on the trail system. First up was a Southern Opossum (Didelphis marsupialis) that was lurking around some of the cabins. Southern Opossum (Didelphis marsupialis) - Muyuna Lodge, Loreto, Peru Next, we braved the mosquitoes on the trail system in search of herps. We couldn't turn up any snakes, but quite a few frogs cooperated. Most were this species, the Red-snouted Treefrog (Scinax ruber), a widespread species found throughout most of South America and locally in the Caribbean and Central America. Red-snouted Treefrog (Scinax ruber) - Muyuna Lodge, Loreto, Peru Red-snouted Treefrog (Scinax ruber) - Muyuna Lodge, Loreto, Peru Red-snouted Treefrog (Scinax ruber) - Muyuna Lodge, Loreto, Peru We also noted various Cane Toads (Rhinella marina) and Neotropical Grass Frogs (Leptodactylus sp.), as well as a few Sheep Frogs (Hamptophryne boliviana) that were calling from a flooded section. Cane Toad (Rhinella marina) - Muyuna Lodge, Loreto, Peru Leptodactylus sp. - Muyuna Lodge, Loreto, Peru Sheep Frog (Hamptophryne boliviana) - Muyuna Lodge, Loreto, Peru We spotted this Bridled Forest Gecko (Gonatodes humeralis) sleeping on some trailside vegetation, while a little further along was a gorgeous Yellow-banded Pinktoe Tarantula (Avicularia juruensis). Bridled Forest Gecko (Gonatodes humeralis) - Muyuna Lodge, Loreto, Peru Yellow-banded Pinktoe Tarantula (Avicularia juruensis) - Muyuna Lodge, Loreto, Peru Yellow-banded Pinktoe Tarantula (Avicularia juruensis) - Muyuna Lodge, Loreto, Peru As we were heading back to the lodge, my flashlight caught the eyeshine of a spiny rat in the genus Proechimys. These are some of the most abundant mammals in Amazonia (not including several bat species), but, because they are nocturnal, we haven't seen them too many times before. Proechimys sp. - Muyuna Lodge, Loreto, Peru February 28, 2024 Our final day at Muyuna Lodge. We were up early this morning and under clear skies we motored northward to the Amazon River. Our goal this morning was to attempt to find the last river island specialty we needed in this part of the Amazon, the River Tyrannulet. This species isn't as localized as some of the other species we had already seen along river islands, yet it was still a big hole on our lists that I was eager to fill. Luckily, it did not take us too long to find a pair of them. They came right in to playback, allowing us to have excellent views of them in the riverside vegetation. My photos leave much to be desired; they were moving too quickly for me to have much success at all with manual-focusing. River Tyrannulet - Muyuna Lodge, Loreto, Peru Moises also took us to his guaranteed site for Sand-colored Nighthawk, as our only view had been of one flying over the river at dusk back at the ExplorNapo Lodge. We quickly found a roosting nightjar and Moises happily proclaimed that we had found a Sand-colored Nighthawk. The only problem, of course, was that it was a Band-tailed Nightjar, which is a common riverside species that we have seen on numerous occasions over the years. Moises wasn't too happy with me challenging his identification, but that is indeed what the bird was. Alas, we were unable to find any real Sand-colored Nighthawks. Ladder-tailed Nightjar - Muyuna Lodge, Loreto, Peru Many birds were active along the main Amazon River. There were signs of the impending spring conditions in the northern hemisphere as well, as many dozens of Fork-tailed Flycatchers and Eastern Kingbirds were flocking together and heading upriver, alongside hundreds of migrant Barn and Bank Swallows. Eastern Kingbird - Muyuna Lodge, Loreto, Peru We returned to the lodge by 9:30 for a late breakfast. Laura and I still had a couple of hours remaining until our departure time and so we went for a final walk on the trails behind the lodge. Perhaps the sunny conditions would make it easier to find our remaining targets, the Blue-cheeked Jacamar and Rufous-necked Puffbird. Rutela lineola - Muyuna Lodge, Loreto, Peru Unidentified brush-footed butterfly (family Nymphalidae) - Muyuna Lodge, Loreto, Peru Bird activity was the best we had seen it on these trails and we even found a few mixed flocks to pick through. Butterflies and lizards were also active. Metamorpha elissa - Muyuna Lodge, Loreto, Peru Bridled Forest Gecko (Gonatodes humeralis) - Muyuna Lodge, Loreto, Peru Unidentified clearwing butterfly (tribe Ithomiini) - Muyuna Lodge, Loreto, Peru Agyrtidia uranophila - Muyuna Lodge, Loreto, Peru We returned to the lodge having had a very nice walk behind the trail system, even if the main target birds refused to cooperate. By the time we packed up and left Muyuna, our eBird checklist had reached 100 species for the morning. Despite the difficulties that we had working with Moises, we still had a really nice visit at Muyuna Lodge. Finding our main target (the Wattled Curassow) on the first morning was a mega highlight. Herps were plentiful and we finished with five species of snakes, including a lifer coral snake. We also found some really interesting lizards including several Northern Caiman Lizards, a species I have wanted to see ever since I was a herp-obsessed teenager. And birding by boat along mega-diverse waterways, with a light breeze cooling us down, was a nice change of pace from slogging it along muddy trails with high temperatures and humidity. Muyuna Lodge is very comfortable and the staff are friendly and accommodating, while the food was excellent. This is a beautiful corner of the world and I hope to return one day.
February 24, 2024 Just outside of the city of Iquitos lies an expansive area containing white-sand forest. The particular forest types that grow on white sand are somewhat uncommon in the Amazon, yet the stunted tree growth provides quite the contrast to "typical" Amazonian rainforest. Over the years quite a few unusual bird species have been found in this white-sand forest outside of Iquitos. Indeed, it was only a few decades ago that a strange gnatcatcher was discovered with canopy flocks here; in 2005, the Iquitos Gnatcatcher was formally described as a new species to science, though some taxonomies consider it a subspecies of the Guianan Gnatcatcher. So far, the Iquitos Gnatcatcher has only been found within the Allpahuayo-Mishana National Reserve. Laura and I wanted to put in a proper search for the gnatcatcher as well as other specialties of this forest type which includes Ancient Antwren, Mishana Tyrannulet, Allpahuayo Antbird, Brown-banded Puffbird, Brown Nunlet and Zimmer's Tody-Tyrant. We enlisted the assistance of German Coisffman whom we had met a few days earlier at ExplorNapo Lodge. Initially we were prepared to visit on our own, but we decided to enlist German's help because the trail system here can be confusing (and we had no intel), and because he knew of some good areas for the Iquitos Gnatcatcher. Even still, we went in with fairly low expectations of finding the gnatcatcher. It can be extremely tricky and most birders miss it. Ideally we would have had three days at RN Allpahuayo-Mishana, but that was not possible given our itinerary and so one day would have to do. We arranged for a taxi to drop us off at the entrance and wait while we birded, before bringing us back to Iquitos later in the afternoon. It was a dark, overcast morning with the threat of rain looming in the air and the dawn chorus was muted. We walked in from the road and after fifteen minutes reached the guardhouse where we would pay our fee. We first tried a side trail that entered the forest near the guardhouse. Despite the gloomy conditions we found some interesting species, including two vocal Brown Nunbirds that we eventually tracked down for some good views. This was the first time seeing this species for Laura and I. Brown Nunlet - RN Allpahuayo-Mishana, Loreto, Peru A little while later, we tracked down another one of our big targets, the Ancient Antwren. This is another recently described species which is only found in a few areas of white-sand forest in northern Peru, including RN Allpahuayo-Mishana. It is a canopy species that often travels with mixed flocks. Photos were difficult as it was backlit and flitting in the canopy, plus I was dealing with a lens that was unable to autofocus. Ancient Antwren - RN Allpahuayo-Mishana, Loreto, Peru It was around this time that the rain began to fall in earnest and so we backtracked to the guardhouse. We settled up the entrance fee and then waited out the rain which was now coming down in buckets. It took about an hour, but it finally passed us by. I was anxious to get back on the trail system as it was now mid-morning. However, I was optimistic that the birds would be more active after the rain. For the rest of the day, German, Laura and I walked slowly along the main entrance trail as well as on various side-trails that cut off of it. German took us to several areas where he had seen the gnatcatcher in the past. We listened carefully for mixed flocks, as this is the best way to cross paths with the gnatcatcher. Some of the mixed flocks were productive and we found a Mishana Tyrannulet in one of them, another target down. But overall the birding was fairly slow and we failed with the gnatcatcher. Some of the trails hadn't been cleared in some time and we had to scramble around a few large tree-falls. RN Allpahuayo-Mishana, Loreto, Peru We ventured into an area that often produces Allpahuayo Antbirds, another range-restricted species that we were on the hunt for. We gave it our best shot, but they refused to respond to the tape. The forest was strangely quiet for most of the day. Waved Woodpecker - RN Allpahuayo-Mishana, Loreto, Peru We found a pair of vocal Brown-banded Puffbrds and tracked one down for photos. This is a species we had only seen before in white-sand forest in Colombia and I was thrilled to photograph it for the first time, even if the photos were pretty poor given the low light, the lack of autofocus, and the puffbirds' penchant for perching in the canopy. Brown-banded Puffbird - RN Allpahuayo-Mishana, Loreto, Peru We picked up a few more nice sightings throughout the day including a pair of Rufous-backed Stipplethroats and a Striolated Manakin. Striolated Manakin - RN Allpahuayo-Mishana, Loreto, Peru We managed to cobble together 71 bird species for the eBird list but struck out with the big target, the Iquitos Gnatcatcher, as well as the Allpahuayo Antbird, so it was hard not to be a little disappointed with our visit to RN Allpahuayo-Mishana. Still, it was neat to explore the forest types of the reserve and it was nice to get to know German as well. That evening Laura and I prepped for the final leg of our Peru trip. In the morning, we had plans to visit Muyuna Lodge for three nights to search for Wattled Curassows and several other specialists of the varzea forest found there. February 25, 2024 When planning the Amazonian leg of our trip, we strategically picked three lodges to give us a great chance at a wide diversity of species. For the last three nights of our trip we would be at Muyuna Lodge, situated at a low point along the south side of the Amazon where the forest floods each year. Since we were still near the beginning of the rainy season, there was dry land, though our rubber boots were necessary and most of our birding was still done by boat. Because Muyuna Lodge is located south of the Amazon River, some of the bird species would be new to us. A river as massive as the Amazon can provide a significant barrier for birds, especially for non-migratory forest dwellers like antbirds and puffbirds. The Saturnine Antshrike, for example, is only found south of the river and would be new to us. Same with the Blue-cheeked Jacamar and Rufous-necked Puffbird. Some of my other targets were varzea (flooded forest) specialists, such as Short-tailed Parrot and Varzea Thrush. However, the main reason we were visiting Muyuna Lodge was for the Wattled Curassow. This endangered species has been nearly hunted to extinction - seemingly a difficult task in the vast Amazon basin. But this is a species that is usually found close to the rivers, and the rivers act as highways for humans. Muyuna Lodge and the surrounding forest is a bit of a sanctuary for the curassows, as the value of the birds as something other than a food source has now been realized. Birders travel here from around the world for a chance to see them. A driver working for Muyuna transported us out of Iquitos to the docks at San Joaquin de Omaguas. From there, it was only a 45 minute boat trip across the wide Amazon River and down a tributary called the Yanayacu River. Laura and I were eager to see what we could find, though our guide, Moises wasn't too interested in walking in the forest right after lunch. Our forced siesta concluded around three and the three of us went for a walk in the forest behind the lodge. This area floods annually but for now it could still be traversed with rubber boots. Female Wire-tailed Manakin - Muyuna Lodge, Loreto, Peru We rustled up a nice variety of species including our first Saturnine Antshrike with a mixed flock, though we had no luck with the jacamar or puffbird. Ant-things were well-represented and I was pleased to photograph these Plumbeous Antbirds. Plumbeous Antbirds - Muyuna Lodge, Loreto, Peru Plumbeous Antbirds - Muyuna Lodge, Loreto, Peru Moises pointed out this sleeping Yellow-crowned Toró peering out of its roosting hole. These nocturnal spiny rats are typically found in flooded Amazonian forest. Yellow-crowned Toró (Isothrix bistriata) - Muyuna Lodge, Loreto, Peru Laura came through with a snake, as she often does. This time it was a huge South American Sipo remaining motionless on a tree buttress. These diurnal hunters have excellent eyesight. South American Sipo (Chironius multiventris) - Muyuna Lodge, Loreto, Peru South American Sipo (Chironius multiventris) - Muyuna Lodge, Loreto, Peru Perhaps it was looking for one of these: Blue-lipped Tree Lizard (Plica umbra) - Muyuna Lodge, Loreto, Peru Before returning to the lodge, Moises pointed out a tree with several tiny Eastern Pygmy Marmosets clinging to the side. It was too dark for good photos, but we would have more chances with these diminutive primates in the coming days. After dinner, we headed out by boat for some spot-lighting along the waterways. Overall it was pretty slow, and Moises was only willing to stay out for an hour. Common Pauraque - Muyuna Lodge, Loreto, Peru One highlight was this gorgeous Garden Tree Boa (Corallus hortulana) hanging out next to the river. What a beaut! Garden Tree Boa (Corallus hortulana) - Muyuna Lodge, Loreto, Peru Garden Tree Boa (Corallus hortulana) - Muyuna Lodge, Loreto, Peru Before calling it a night, I quickly checked my moth trap that I had strung up behind the lodge. There were just a few species present, continuing the befuddling trend of not finding any moths in the Amazon. Maybe it is better later in the rainy season? Crinodes besckei - Muyuna Lodge, Loreto, Peru Unidentified prominent moth (family Notodontidae) - Muyuna Lodge, Loreto, Peru Anticla antica - Muyuna Lodge, Loreto, Peru Trichromia sp. - Muyuna Lodge, Loreto, Peru Enyo ocypete - Muyuna Lodge, Loreto, Peru In the morning, we would commence our first search for the Wattled Curassow. Stay tuned.
More in science
[Note that this article is a transcript of the video embedded above.] Wichita Falls, Texas, went through the worst drought in its history in 2011 and 2012. For two years in a row, the area saw its average annual rainfall roughly cut in half, decimating the levels in the three reservoirs used for the city’s water supply. Looking ahead, the city realized that if the hot, dry weather continued, they would be completely out of water by 2015. Three years sounds like a long runway, but when it comes to major public infrastructure projects, it might as well be overnight. Between permitting, funding, design, and construction, three years barely gets you to the starting line. So the city started looking for other options. And they realized there was one source of water nearby that was just being wasted - millions of gallons per day just being flushed down the Wichita River. I’m sure you can guess where I’m going with this. It was the effluent from their sewage treatment plant. The city asked the state regulators if they could try something that had never been done before at such a scale: take the discharge pipe from the wastewater treatment plant and run it directly into the purification plant that produces most of the city’s drinking water. And the state said no. So they did some more research and testing and asked again. By then, the situation had become an emergency. This time, the state said yes. And what happened next would completely change the way cities think about water. I’m Grady and this is Practical Engineering. You know what they say, wastewater happens. It wasn’t that long ago that raw sewage was simply routed into rivers, streams, or the ocean to be carried away. Thankfully, environmental regulations put a stop to that, or at least significantly curbed the amount of wastewater being set loose without treatment. Wastewater plants across the world do a pretty good job of removing pollutants these days. In fact, I have a series of videos that go through some of the major processes if you want to dive deeper after this. In most places, the permits that allow these plants to discharge set strict limits on contaminants like organics, suspended solids, nutrients, and bacteria. And in most cases, they’re individualized. The permit limits are based on where the effluent will go, how that water body is used, and how well it can tolerate added nutrients or pollutants. And here’s where you start to see the issue with reusing that water: “clean enough” is a sliding scale. Depending on how water is going to be used or what or who it’s going to interact with, our standards for cleanliness vary. If you have a dog, you probably know this. They should drink clean water, but a few sips of a mud puddle in a dirty street, and they’re usually just fine. For you, that might be a trip to the hospital. Natural systems can tolerate a pretty wide range of water quality, but when it comes to drinking water for humans, it should be VERY clean. So the easiest way to recycle treated wastewater is to use it in ways that don’t involve people. That idea’s been around for a while. A lot of wastewater treatment plants apply effluent to land as a disposal method, avoiding the need for discharge to a natural water body. Water soaks into the ground, kind of like a giant septic system. But that comes with some challenges. It only works if you’ve got a lot of land with no public access, and a way to keep the spray from drifting into neighboring properties. Easy at a small scale, but for larger plants, it just isn’t practical engineering. Plus, the only benefits a utility gets from the effluent are some groundwater recharge and maybe a few hay harvests per season. So, why not send the effluent to someone else who can actually put it to beneficial use? If only it were that simple. As soon as a utility starts supplying water to someone else, things get complicated because you lose a lot of control over how the effluent is used. Once it's out of your hands, so to speak, it’s a lot harder to make sure it doesn’t end up somewhere it shouldn’t, like someone’s mouth. So, naturally, the permitting requirements become stricter. Treatment processes get more complicated and expensive. You need regular monitoring, sampling, and laboratory testing. In many places in the world, reclaimed water runs in purple pipes so that someone doesn’t inadvertently connect to the lines thinking they’re potable water. In many cases, you need an agreement in place with the end user, making sure they’re putting up signs, fences, and other means of keeping people from drinking the water. And then you need to plan for emergencies - what to do if a pipe breaks, if the effluent quality falls below the standards, or if a cross-connection is made accidentally. It’s a lot of work - time, effort, and cost - to do it safely and follow the rules. And those costs have to be weighed against the savings that reusing water creates. In places that get a lot of rain or snow, it’s usually not worth it. But in many US states, particularly those in the southwest, this is a major strategy to reduce the demand on fresh water supplies. Think about all the things we use water for where its cleanliness isn’t that important. Irrigation is a big one - crops, pastures, parks, highway landscaping, cemeteries - but that’s not all. Power plants use huge amounts of water for cooling. Street sweeping, dust control. In nearly the entire developed world, we use drinking-quality water to flush toilets! You can see where there might be cases where it makes good sense to reclaim wastewater, and despite all the extra challenges, its use is fairly widespread. One of the first plants was built in 1926 at Grand Canyon Village which supplied reclaimed water to a power plant and for use in steam locomotives. Today, these systems can be massive, with miles and miles of purple pipes run entirely separate from the freshwater piping. I’ve talked about this a bit on the channel before. I used to live near a pair of water towers in San Antonio that were at two different heights above ground. That just didn’t make any sense until I realized they weren’t connected; one of them was for the reclaimed water system that didn’t need as much pressure in the lines. Places like Phoenix, Austin, San Antonio, Orange County, Irvine, and Tampa all have major water reclamation programs. And it’s not just a US thing. Abu Dhabi, Beijing, and Tel Aviv all have infrastructure to make beneficial use of treated municipal wastewater, just to name a few. Because of the extra treatment and requirements, many places put reclaimed water in categories based on how it gets used. The higher the risk of human contact, the tighter the pollutant limits get. For example, if a utility is just selling effluent to farmers, ranchers, or for use in construction, exposure to the public is minimal. Disinfecting the effluent with UV or chlorine may be enough to meet requirements. And often that’s something that can be added pretty simply to an existing plant. But many reclaimed water users are things like golf courses, schoolyards, sports fields, and industrial cooling towers, where people are more likely to be exposed. In those cases, you often need a sewage plant specifically designed for the purpose or at least major upgrades to include what the pros call tertiary treatment processes - ways to target pollutants we usually don’t worry about and improve the removal rates of the ones we do. These can include filters to remove suspended solids, chemicals that bind to nutrients, and stronger disinfection to more effectively kill pathogens. This creates a conundrum, though. In many cases, we treat wastewater effluent to higher standards than we normally would in order to reclaim it, but only for nonpotable uses, with strict regulations about human contact. But if it’s not being reclaimed, the quality standards are lower, and we send it downstream. If you know how rivers work, you probably see the inconsistency here. Because in many places, down the river, is the next city with its water purification plant whose intakes, in effect, reclaim that treated sewage from the people upstream. This isn’t theoretical - it’s just the reality of how humans interact with the water cycle. We’ve struggled with the problems it causes for ages. In 1906, Missouri sued Illinois in the Supreme Court when Chicago reversed their river, redirecting its water (and all the city’s sewage) toward the Mississippi River. If you live in Houston, I hate to break it to you, but a big portion of your drinking water comes from the flushes and showers in Dallas. There have been times when wastewater effluent makes up half of the flow in the Trinity River. But the question is: if they can do it, why can’t we? If our wastewater effluent is already being reused by the city downstream to purify into drinking water, why can’t we just keep the effluent for ourselves and do the same thing? And the answer again is complicated. It starts with what’s called an environmental buffer. Natural systems offer time to detect failures, dilute contaminants, and even clean the water a bit—sunlight disinfects, bacteria consume organic matter. That’s the big difference in one city, in effect, reclaiming water from another upstream. There’s nature in between. So a lot of water reclamation systems, called indirect potable reuse, do the same thing: you discharge the effluent into a river, lake, or aquifer, then pull it out again later for purification into drinking water. By then, it’s been diluted and treated somewhat by the natural systems. Direct potable reuse projects skip the buffer and pipe straight from one treatment plant to the next. There’s no margin for error provided by the environmental buffer. So, you have to engineer those same protections into the system: real-time monitoring, alarms, automatic shutdowns, and redundant treatment processes. Then there’s the issue of contaminants of emerging concern: pharmaceuticals, PFAS [P-FAS], personal care products - things that pass through people or households and end up in wastewater in tiny amounts. Individually, they’re in parts per billion or trillion. But when you close the loop and reuse water over and over, those trace compounds can accumulate. Many of these aren’t regulated because they’ve never reached concentrations high enough to cause concern, or there just isn’t enough knowledge about their effects yet. That’s slowly changing, and it presents a big challenge for reuse projects. They can be dealt with at the source by regulating consumer products, encouraging proper disposal of pharmaceuticals (instead of flushing them), and imposing pretreatment requirements for industries. It can also happen at the treatment plant with advanced technologies like reverse osmosis, activated carbon, advanced oxidation, and bio-reactors that break down micro-contaminants. Either way, it adds cost and complexity to a reuse program. But really, the biggest problem with wastewater reuse isn’t technical - it’s psychological. The so-called “yuck factor” is real. People don’t want to drink sewage. Indirect reuse projects have a big benefit here. With some nature in between, it’s not just treated wastewater; it’s a natural source of water with treated wastewater in it. It’s kind of a story we tell ourselves, but we lose the benefit of that with direct reuse: Knowing your water came from a toilet—even if it’s been purified beyond drinking water standards—makes people uneasy. You might not think about it, but turning the tap on, putting that water in a glass, and taking a drink is an enormous act of trust. Most of us don’t understand water treatment and how it happens at a city scale. So that trust that it’s safe to drink largely comes from seeing other people do it and past experience of doing it over and over and not getting sick. The issue is that, when you add one bit of knowledge to that relative void of understanding - this water came directly from sewage - it throws that trust off balance. It forces you not to rely not on past experience but on the people and processes in place, most of which you don’t understand deeply, and generally none of which you can actually see. It’s not as simple as just revulsion. It shakes up your entire belief system. And there’s no engineering fix for that. Especially for direct potable reuse, public trust is critical. So on top of the infrastructure, these programs also involve major public awareness campaigns. Utilities have to put themselves out there, gather feedback, respond to questions, be empathetic to a community’s values, and try to help people understand how we ensure water quality, no matter what the source is. But also, like I said, a lot of that trust comes from past experience. Not everyone can be an environmental engineer or licensed treatment plant operator. And let’s be honest - utilities can’t reach everyone. How many public meetings about water treatment have you ever attended? So, in many places, that trust is just going to have to be built by doing it right, doing it well, and doing it for a long time. But, someone has to be first. In the U.S., at least on the city scale, that drinking water guinea pig was Wichita Falls. They launched a massive outreach campaign, invited experts for tours, and worked to build public support. But at the end of the day, they didn’t really have a choice. The drought really was that severe. They spent nearly four years under intense water restrictions. Usage dropped to a third of normal demand, but it still wasn’t enough. So, in collaboration with state regulators, they designed an emergency direct potable reuse system. They literally helped write the rules as they went, since no one had ever done it before. After two months of testing and verification, they turned on the system in July 2014. It made national headlines. The project ran for exactly one year. Then, in 2015, a massive flood ended the drought and filled the reservoirs in just three weeks. The emergency system was always meant to be temporary. Water essentially went through three treatment plants: the wastewater plant, a reverse osmosis plant, and then the regular water purification plant. That’s a lot of treatment, which is a lot of expense, but they needed to have the failsafe and redundancy to get the state on board with the project. The pipe connecting the two plants was above ground and later repurposed for the city’s indirect potable reuse system, which is still in use today. In the end, they reclaimed nearly two billion gallons of wastewater as drinking water. And they did it with 100% compliance with the standards. But more importantly, they showed that it could be done, essentially unlocking a new branch on the skill tree of engineering that other cities can emulate and build on.
A version of this post originally appeared on Tedium, Ernie Smith’s newsletter, which hunts for the end of the long tail. For roughly three decades, the JPEG has been the World Wide Web’s primary image format. But it wasn’t the one the Web started with. In fact, the first mainstream graphical browser, NCSA Mosaic, didn’t initially support inline JPEG files—just inline GIFs, along with a couple of other formats forgotten to history. However, the JPEG had many advantages over the format it quickly usurped. aspect_ratio Despite not appearing together right away—it first appeared in Netscape in 1995, three years after the image standard was officially published—the JPEG and web browser fit together naturally. JPEG files degraded more gracefully than GIFs, retaining more of the picture’s initial form—and that allowed the format to scale to greater levels of success. While it wasn’t capable of animation, it progressively expanded from something a modem could pokily render to a format that was good enough for high-end professional photography. For the internet’s purposes, the degradation was the important part. But it wasn’t the only thing that made the JPEG immensely valuable to the digital world. An essential part was that it was a documented standard built by numerous stakeholders. The GIF was a de facto standard. The JPEG was an actual one How important is it that JPEG was a standard? Let me tell you a story. During a 2013 New York Times interview conducted just before he received an award honoring his creation, GIF creator Steve Wilhite stepped into a debate he unwittingly created. Simply put, nobody knew how to pronounce the acronym for the image format he had fostered, the Graphics Interchange Format. He used the moment to attempt to set the record straight—it was pronounced like the peanut butter brand: “It is a soft ‘G,’ pronounced ‘jif.’ End of story,” he said. I posted a quote from Wilhite on my popular Tumblr around that time, a period when the social media site was the center of the GIF universe. And soon afterward, my post got thousands of reblogs—nearly all of them disagreeing with Wilhite. Soon, Wilhite’s quote became a meme. The situation paints how Wilhite, who died in 2022, did not develop his format by committee. He could say it sounded like “JIF” because he built it himself. He was handed the project as a CompuServe employee in 1987; he produced the object, and that was that. The initial document describing how it works? Dead simple. 38 years later, we’re still using the GIF—but it never rose to the same prevalence of JPEG. The JPEG, which formally emerged about five years later, was very much not that situation. Far from it, in fact—it’s the difference between a de facto standard and an actual one. And that proved essential to its eventual ubiquity. We’re going to degrade the quality of this image throughout this article. At its full image size, it’s 13.7 megabytes.Irina Iriser How the JPEG format came to life Built with input from dozens of stakeholders, the Joint Photographic Experts Group ultimately aimed to create a format that fit everyone’s needs. (Reflecting its committee-led roots, there would be no confusion about the format’s name—an acronym of the organization that designed it.) And when the format was finally unleashed on the world, it was the subject of a more than 600-page book. JPEG: Still Image Data Compression Standard, written by IBM employees and JPEG organization stakeholders William B. Pennebaker and Joan L. Mitchell, describes a landscape of multimedia imagery, held back without a way to balance the need for photorealistic images and immediacy. Standardization, they believed, could fix this. “The problem was not so much the lack of algorithms for image compression (as there is a long history of technical work in this area),” the authors wrote, “but, rather, the lack of a standard algorithm—one which would allow an interchange of images between diverse applications.” And they were absolutely right. For more than 30 years, JPEG has made high-quality, high-resolution photography accessible in operating systems far and wide. Although we no longer need to compress JPEGs to within an inch of their life, having that capability helped enable the modern internet. As the book notes, Mitchell and Pennebaker were given IBM’s support to follow through this research and work with the JPEG committee, and that support led them to develop many of the JPEG format’s foundational patents. Described in patents filed by Mitchell and Pennebaker in 1988, IBM and other members of the JPEG standards committee, such as AT&T and Canon, were developing ways to use compression to make high-quality images easier to deliver in confined settings. Each member brought their own needs to the process. Canon, obviously, was more focused on printers and photography, while AT&T’s interests were tied to data transmission. Together, the companies left behind a standard that has stood the test of time. All this means, funnily enough, that the first place that a program capable of using JPEG compression appeared was not MacOS or Windows, but OS/2—a fascinating-but-failed graphical operating system created by Pennebaker and Mitchell’s employer, IBM. As early as 1990, OS/2 supported the format through the OS/2 Image Support application. At 50 percent of its initial quality, the image is down to about 2.6 MB. By dropping half of the image’s quality, we brought it down to one-fifth of the original file size. Original image: Irina Iriser What a JPEG does when you heavily compress it The thing that differentiates a JPEG file from a PNG or a GIF is how the data degrades as you compress it. The goal for a JPEG image is to still look like a photo when all is said and done, even if some compression is necessary to make it all work at a reasonable size. That way, you can display something that looks close to the original image in fewer bytes. Or, as Pennebaker and Mitchell put it, “the most effective compression is achieved by approximating the original image (rather than reproducing it exactly).” Central to this is a compression process called discrete cosine transform (DCT), a lossy form of compression encoding heavily used in all sorts of compressed formats, most notably in digital audio and signal processing. Essentially, it delivers a lower-quality product by removing details, while still keeping the heart of the original product through approximation. The stronger the cosine transformation, the more compressed the final result. The algorithm, developed by researchers in the 1970s, essentially takes a grid of data and treats it as if you’re controlling its frequency with a knob. The data rate is controlled like water from a faucet: The more data you want, the higher the setting. DCT allows a trickle of data to still come out in highly compressed situations, even if it means a slightly compromised result. In other words, you may not keep all the data when you compress it, but DCT allows you to keep the heart of it. (See this video for a more technical but still somewhat easy-to-follow description of DCT.) DCT is everywhere. If you have ever seen a streaming video or an online radio stream that degraded in quality because your bandwidth suddenly declined, you’ve witnessed DCT being utilized in real time. A JPEG file doesn’t have to leverage the DCT with just one method, as JPEG: Still Image Data Compression Standard explains: The JPEG standard describes a family of large image compression techniques, rather than a single compression technique. It provides a “tool kit” of compression techniques from which applications can select elements that satisfy their particular requirements. The toolkit has four modes: Sequential DCT, which displays the compressed image in order, like a window shade slowly being rolled down Progressive DCT, which displays the full image in the lowest-resolution format, then adds detail as more information rolls in Sequential lossless, which uses the window shade format but doesn’t compress the image Hierarchical mode, which combines the prior three modes—so maybe it starts with a progressive mode, then loads DCT compression slowly, but then reaches a lossless final result At the time the JPEG was being created, modems were extremely common. That meant images loaded slowly, making Progressive DCT the most fitting format for the early internet. Over time, the progressive DCT mode has become less common, as many computers can simply load the sequential DCT in one fell swoop. That same forest, saved at 5 percent quality. Down to about 419 kilobytes.Original image: Irina Iriser When an image is compressed with DCT, the change tends to be less noticeable in busier, more textured areas of the picture, like hair or foliage. Those areas are harder to compress, which means they keep their integrity longer. It tends to be more noticeable, however, with solid colors or in areas where the image sharply changes from one color to another—like text on a page. Ever screenshot a social media post, only for it to look noisy? Congratulations, you just made a JPEG file. Other formats, like PNG, do better with text, because their compression format is intended to be non-lossy. (Side note: PNG’s compression format, DEFLATE, was designed by Phil Katz, who also created the ZIP format. The PNG format uses it in part because it was a license-free compression format. So it turns out the brilliant coder with the sad life story improved the internet in multiple ways before his untimely passing.) In many ways, the JPEG is one tool in our image-making toolkit. Despite its age and maturity, it remains one of our best options for sharing photos on the internet. But it is not a tool for every setting—despite the fact that, like a wrench sometimes used as a hammer, we often leverage it that way. Forgent Networks claimed to own the JPEG’s defining algorithm The JPEG format gained popularity in the ’90s for reasons beyond the quality of the format. Patents also played a role: Starting in 1994, the tech company Unisys attempted to bill individual users who relied on GIF files, which used a patent the company owned. This made the free-to-use JPEG more popular. (This situation also led to the creation of the patent-free PNG format.) While the JPEG was standards-based, it could still have faced the same fate as the GIF, thanks to the quirks of the patent system. A few years before the file format came to life, a pair of Compression Labs employees filed a patent application that dealt with the compression of motion graphics. By the time anyone noticed its similarity to JPEG compression, the format was ubiquitous. Our forest, saved at 1 percent quality. This image is only about 239 KB in size, yet it’s still easily recognizable as the same photo. That’s the power of the JPEG.Original image: Irina Iriser Then in 1997, a company named Forgent Networks acquired Compression Labs. The company eventually spotted the patent and began filing lawsuits over it, a series of events it saw as a stroke of good luck. “The patent, in some respects, is a lottery ticket,” Forgent Chief Financial Officer Jay Peterson told CNET in 2005. “If you told me five years ago that ‘You have the patent for JPEG,’ I wouldn’t have believed it.” While Forgent’s claim of ownership of the JPEG compression algorithm was tenuous, it ultimately saw more success with its legal battles than Unisys did. The company earned more than $100 million from digital camera makers before the patent finally ran out of steam around 2007. The company also attempted to extract licensing fees from the PC industry. Eventually, Forgent agreed to a modest $8 million settlement. As the company took an increasingly aggressive approach to its acquired patent, it began to lose battles both in the court of public opinion and in actual courtrooms. Critics pounced on examples of prior art, while courts limited the patent’s use to motion-based uses like video. By 2007, Forgent’s compression patent expired—and its litigation-heavy approach to business went away. That year, the company became Asure Software, which now specializes in payroll and HR solutions. Talk about a reboot. Why the JPEG won’t die The JPEG file format has served us well. It’s been difficult to remove the format from its perch. The JPEG 2000 format, for example, was intended to supplant it by offering more lossless options and better performance. The format is widely used by the Library of Congress and specialized sites like the Internet Archive, however, it is less popular as an end-user format. See the forest JPEG degrade from its full resolution to 1 percent quality in this GIF. Original image: Irina Iriser Other image technologies have had somewhat more luck getting past the JPEG format. The Google-supported WebP is popular with website developers (and controversial with end users). Meanwhile, the formats AVIF and HEIC, each developed by standards bodies, have largely outpaced both JPEG and JPEG 2000. Still, the JPEG will be difficult to kill at this juncture. These days, the format is similar to MP3 or ZIP files—two legacy formats too popular and widely used to kill. Other formats that compress the files better and do the same things more efficiently are out there, but it’s difficult to topple a format with a 30-year head start. Shaking off the JPEG is easier said than done. I think most people will be fine to keep it around. Ernie Smith is the editor of Tedium, a long-running newsletter that hunts for the end of the long tail.
The planning trick that created Japan's famous urbanism
This is the first touchpoint for science, we should make it more enticing
By weaving together existing railway lines, some cities can get the best transit in the world