Category:鳥類学

Comb (anatomy)

Crest (feathers)

Bird ringing

Furcula

Yamashina Institute for Ornithology

Keel (bird anatomy)

Anting (behavior)

Flight

Gizzard

Beak

Crop milk

Flight feather

Crop (anatomy)

Bird anatomy#Respiratory system

Wing

Feather

Bird anatomy

Bird migration