BehaviorEvolution
Fancy Males & Choosy Females
Interactive Feature
AnatomyFeathers
What is Unique to Birds?
Interactive Feature
Nesting
Blyth's Paradise-Flycatchers Alternate Nest Responsibilities
clip 0:46
Nesting
A Bluethroat Feeds and Broods Chicks on Its Nest
clip 1:12
Nesting
A Female Rock Ptarmigan Sits on Her Nest
clip 0:44
Nesting
A Red-necked Grebe Sits on Its Nest
clip 1:01
BehaviorNesting
King Penguins Incubating Eggs on Their Feet