This section deals with what a bird looks like and what inner structures are involved in their daily activities.
Perching and Tendon Locking Mechansim
Asynchronous and synchronous hatching
Monocular vision
Fright or defense moult
Development cycle: Coscoroba swan
Development cycle: Rufescent Tiger-Heron
Development cycle: Limpkin
Oral flanges
Feeding on the wing
Gastroliths
Atypical Ducks
Case of atypical duck
Case of atypical duck 2
Syndactyl foot
Totipalmate foot
Zygodactyl foot
The bird's leg
Crop milk
Stiff-tailed Ducks
Three raptors
Dust bathing