Birds of the World | The Cornell Lab

Obliging, too!

Horned Lark - Eremophila alpestris - Birds of the World Species accounts for all the birds of the world.

Good afternoon, bird people. Tell us what Birds in the World are you seeing today? Bonus if you grab a link to the species account from BOW!

We'll go first: Horned Lark in New York:

birdsoftheworld.org/bow/species/...

Image of page saying: Glossary of Terms used in Birds of the World

A reminder that Birds of the World features an in-depth ornithological glossary. If interested, head over to:

birdsoftheworld.org/bow/support/...

Eastern Red-legged Thrush - Turdus ardosiaceus - Birds of the World Species accounts for all the birds of the world.

Eastern Red-Legged Thrushes are found in Hispaniola, Puerto Rico, and Dominica. When defending territory, females were observed being more aggressive towards intruders. Males chase each other, often crashing mid-air and continuing to fight on the ground. birdsoftheworld.org/bow/species/relthr3

Black-eared Catbird - Ailuroedus melanotis - Birds of the World Species accounts for all the birds of the world.

Though the Black-eared Catbird of New Guinea and Australia is classified as a bowerbird (Ptilonorhynchidae), males do not construct courtship bowers. Pairs are monogamous as well, further separating this species and others in its genus from other bowerbirds. birdsoftheworld.org/bow/species/bkecat4

Lilacine Amazon - Amazona lilacina - Birds of the World Species accounts for all the birds of the world.

Lilacine Amazon is endemic to Ecuador and is Critically Endangered with population estimates of less than 2,500. As forests are cleared for crop plantations, wood extraction, and urban expansion, this parrot’s suitable habitat is rapidly disappearing. birdsoftheworld.org/bow/species/relpar9

Birds of the World - WEBINAR: El Lorito del Subandean Parakeet: 5 años de búsqueda, una experiencia con sorpresas y desafíos. Register now for the BOW Discovery Seminar on April 16, todo en espanol! El Lorito del Subandean Parakeet (Pyrrhura picta): 5 años de búsqueda, una experiencia con sorpresas y desafíos.

Put it on your calendar! 16 April 2026... 12:00 pm ET

Red Grouse - Lagopus scotica - Birds of the World Species accounts for all the birds of the world.

In 2025, the Red Grouse was (finally) elevated to species status via AviList. Heather provides essential cover and predominates the diet of this bird year-round, sometimes entirely. As a result, its distribution is closely tied to managed heather moorlands in Britain and Ireland.

Thank you!

🦜🌏 One of the perks of being an Indiana Audubon member, besides early access to the Indiana Dunes Birding Festival, is FREE access to @birdsoftheworld.bsky.social.

Our next access update happens in the first week of March! Become a member now to get this benefit: indianaaudubon.org/membership

Volunteers wanted! Are you passionate about birds, science, and and sharing? If so, there is a place for you in Birds of the World! We partner with both individuals and institutions to curate deep scientific content on birds.

birdsoftheworld.org/bow/content/...

Eastern Rockhopper Penguin - Eudyptes filholi - Birds of the World Species accounts for all the birds of the world.

The Eastern Rockhopper Penguin is listed as a Vulnerable species, as several colonies have lost up to 94% of their population since the 1940s. Major threats include disease outbreaks and mudslides due to overgrazing from introduced livestock and rabbits. birdsoftheworld.org/bow/species/rocpen3

Antioquia Brushfinch - Atlapetes blancae - Birds of the World Species accounts for all the birds of the world.

Critically endangered, the Antioquia Brushfinch is range-restricted to the northern Central Andes in Colombia. In 1971, this small bird was considered extinct but was thankfully rediscovered in 2018. Recent expeditions have found even more viable populations! birdsoftheworld.org/bow/species/antbrf1

Sharp-billed Treehunter - Heliobletus contaminatus - Birds of the World Species accounts for all the birds of the world.

The Sharp-billed Treehunter is a nimble forager, often hanging upside down as it flits on trees and vine tangles gleaning for insects. Its small size and agility allow it to find prey often hidden to other species. Click here to see these acrobats in action: birdsoftheworld.org/bow/species/shbtre1

Birds of the World - BOW Seminar: Asian Vulture Conservation, featuring Chris Bowden, MBE Register for the February 19 webinar featuring: Chris Bowden, the Globally Threatened Species Officer at the Royal Society for the Protection of Birds (RSPB). Chris develops and implements conservatio...

Don't miss this semianr featuring one of the world's foremost experts on the conservation of Asian vultures, Chris Bowden, MBE, with the RSPB and Saving Asia’s Vultures from Extinction (SAVE). Next Thursday!

birdsoftheworld.org/bow/news/asi...

Phylogeny Explorer - Birds of the World The Phylogeny Explorer offers a captivating experience for exploring avian evolution, discovering closely related species, and grasping the timescales at which they evolved.

Today is a great day to review the Phylogeny of all the Birds of the World!

birdsoftheworld.org/bow/phylogeny

Birds of the World - BOW Seminar: Asian Vulture Conservation, featuring Chris Bowden, MBE Featuring Chris Bowden, the Globally Threatened Species Officer at the Royal Society for the Protection of Birds (RSPB). Chris focuses on developing and implementing conservation strategies for some o...

Free webinar on Asian Vulture Conservation, featuring Chris Bowden, MBE.

Streaked Shearwater - Calonectris leucomelas - Birds of the World Species accounts for all the birds of the world.

What does Streaked Shearwater have in common with the ...werewolf? They both hunt under a full moon! Though they are spotted feeding either day or night, these seabirds will take advantage of bright moonlight to catch fish like the Japanese anchovy. birdsoftheworld.org/bow/species/strshe

Slender-billed Parakeet - Enicognathus leptorhynchus - Birds of the World Species accounts for all the birds of the world.

The Slender-Billed Parakeet is an endemic Chilean parrot specializing in manipulating the seeds of pehuén (Araucaria araucana) with its long, sharp bill. It feeds on the fruits and flowers of many other plants and uses its bill to dig out roots. birdsoftheworld.org/bow/species/slbpar1

Brown Cacholote - Pseudoseisura lophotes - Birds of the World Species accounts for all the birds of the world.

Usually described as “raucous” and “cacophonous,” the Brown Cacholote is an energetic South American ovenbird. The bird announces its presence by performing its long, loud series of grating notes from treetops. Listen to some duets here: birdsoftheworld.org/bow/species/brncac1

Pygmy Palm Swift - Tachornis furcata - Birds of the World Species accounts for all the birds of the world.

As its name suggests, the Pygmy Palm Swift prefers to nest between palm fronds. The nest itself is primarily constructed of the feathers of other birds, and the swift attaches it to palm fronds using its saliva. Click here to learn more: birdsoftheworld.org/bow/species/pygswi1

Birds of World's new Phylogeny Explorer It’s been an exciting week. Five years in the making, we’re very excited to release this new, updated, dynamic phylogeny of the world’s birds. By harnessing Open Tree of Life ’s existing...

Taxonomy and phylogeny are two sides of the same coin, but that doesn't mean they are always in agreement. I wrote a blog post on why the new Phylogeny Explorer in @birdsoftheworld.bsky.social is such a big deal in that regard, and what's in store next for us.

eliotmiller.weebly.com/blog/birds-o...

Birds of the World - New! The Birds of the World Phylogeny Viewer, a groundbreaking ornithological tool! The new illustrated Birds of the World Phylogeny Explorer lets users trace any bird’s lineage, compare species relationships, and explore major evolutionary milestones with a click of a button. Ithaca...

"This is incredible! Long gone are the days that I try to cobble together a Passeriformes phylogenies from countless papers. Thank you for this work!" - I. Robichaud.

Introducing the Birds of the World Phylogeny Explorer birdsoftheworld.org/bow/news/phy...

Major thanks to Dr. Eliot Miller 🔽 and Dr. Emily Jane Mctavish who guided the Phylogeny Explorer effort with a team of dedicated people for the last 5 years! Their 2025 PNAS paper set the foundation for the Phylogeny Explorer! www.pnas.org/doi/10.1073/...

Looks like an amazing tool, especially for those of us teaching Ornithology, Evolution, etc. Also, just fun to cruise around and learn about new birds and taxonomic relationships.

Cool tool !!

IMAGE SHOWS GRAPHIC OF CORNELL LAB OF ORNITHOLOGY PHYLOGENY EXPLORER TOOL.

MAJOR NEWS! We just launched an awesome new tool! The illustrated Birds of the World Phylogeny Explorer lets users trace any bird’s lineage, compare species relationships, and explore major evolutionary milestones with a click of a button. SHARE and EXPLORE! birdsoftheworld.org/bow/news/phy...

Black-eared Catbird - Ailuroedus melanotis - Birds of the World Species accounts for all the birds of the world.

Though the Black-eared Catbird of New Guinea and Australia is classified as a bowerbird (Ptilonorhynchidae), males do not construct courtship bowers. Pairs are monogamous as well, further separating this species and others in its genus from other bowerbirds. birdsoftheworld.org/bow/species/bkecat4

Antioquia Brushfinch - Atlapetes blancae - Birds of the World Species accounts for all the birds of the world.

Critically endangered, Antioquia Brushfinch is range-restricted to the northern Central Andes in Colombia. In 1971, this small bird was considered extinct but was thankfully rediscovered in 2018. Recent expeditions have found even more viable populations! birdsoftheworld.org/bow/species/antbrf1

Ochre-naped Ground-Tyrant - Muscisaxicola flavinucha - Birds of the World Species accounts for all the birds of the world.

Twice a year, Ochre-naped Ground-Tyrants migrate between their nonbreeding range in the Central Andes and their breeding range in the Southern Andes. This relatively long-distance migration takes them as far south as Tierra del Fuego from October to February. birdsoftheworld.org/bow/species/ongtyr1