Sapayoa aenigma, Nusagandi, Panama

The Sex Lives of Birds

Deep in a Central American rainforest, ornithologists have discovered that a rare bird has an unusual lifestyle.
Cormorants on a Guano Island

Are We Entering a New Golden Age of Guano?

A history of civilization could be written in fertilizers. And the history of guano—bird poop—tells us a lot about slavery, imperialism, and U.S. expansion.
Secretarybird with a snake, Masai Mara, Kenya

Meet the Secretary Bird, Snake Nemesis

If snakes have nightmares, they most likely include secretary birds (or secretarybirds)—so-called because the birds’ crests, when flattened against the head, ...
Blackpoll Warbler (Dendroica striata) on branch

Birdstor Daily

Once upon a time, it felt appropriate to make April Fools' jokes...
Camouflage

Teddy Roosevelt Weighs in on the Evolution of Camouflage

In the years after his presidency, Roosevelt sent a letter to The Condor magazine criticizing painter Abbott Thayer's theory of animal camouflage.
heath hen

The Sad Story of Booming Ben, Last of the Heath Hens

Grassland-dwelling heath hen and prairie chicken populations across the country are in trouble. Loss of habitat continues to threaten their numbers.
Falcon

Raptors Are Avian Arsonists

Raptors are proving to be great problem-solvers. Falcons, for instance, start their own fires to flush out prey. 
Mute swans

Are Mute Swans a Harmful Invasive Species?

Mute swans are the poster child for a harmful species protected by strong public goodwill.
By Martinvl (Own work) [CC BY-SA 3.0 (http://creativecommons.org/licenses/by-sa/3.0)], via Wikimedia Commons

The Truth Behind the Tower Ravens

Fakelore: the deliberate fabrication of a folklore. A term that perfectly describes the legend of the Tower Ravens, the birds of the Tower of London.