Archives

An owl with a disk-shaped face and two bright yellow eyes turns its head sideways, perched in the tree top.

AnatomyBehavior

Superb Owls

Anatomy

Meet the Sword-billed Hummingbird

Links to the Extreme Hummingbirds video

Anatomy

Extreme Hummingbirds

Links to the Can Owls Turn Their Heads 360 Degrees? Video

Anatomy

Can Owls Turn Their Heads 360 Degrees?

AnatomyBehavior

Built to Peck: How Woodpeckers Avoid Brain Injury

Anatomy

All About Bird Anatomy

collage of bird photos arranged to create a rainbow gradient

AnatomyFeathers

How Birds Make Colorful Feathers

Male Greater Sage-Grouse display

AnatomyBehavior

On a Sage-Grouse Lek: The Male Display

AnatomySongs + Calls

How Birds Sing

AnatomyEvolution

Ribbon-tailed Astrapia: The Three-Foot Tail

Anatomy

Home Study Course in Bird Biology

photo of a Club Winged Manakin

AnatomyFeathers

Meet a Feather Scientist

roseate spoonbill - flight feathers

AnatomyFeathers

What Feathers Do

Bird_Biology-contour_feather_illustration_side

AnatomyFeathers

How Feathers Are Built

All About Feathers bird illustration detail

AnatomyFeathers

What is Unique to Birds?

AnatomySongs + Calls

Built to Sing: The Syrinx of the Northern Cardinal

A mosquito associated with avian malaria

Anatomy

Investigating Avian Malaria

The elongated windpipe of a Curl-crested Manucode

AnatomySongs + Calls

Curl-crested Manucode: Unusual Anatomy

AnatomyFeathers

Color: and the Birds-of-Paradise

The diversity of colors in the Magnificent Bird-of-Paradise

AnatomyFeathers

Feathers: and the Birds-of-Paradise

Yellow-billed Loon tucks its leg under a wing in cold water

AnatomyBehavior

How Yellow-billed Loons Survive in the Arctic

Bird biology birding by size and shape

AnatomyBird ID

Inside Birding: Size & Shape