Wikimedi'Òc

SwiftWingBones.png - Cactus26

PSM V04 D712 Feet as wings and paddles.jpg - Ineuw

Todus, Todirostrum, Eurylaimus & Coracias sterna 1872.jpg - Totodu74

Osteologia avium, or, A sketch of the osteology of birds (DETAILS PL. 7.G) (8537251596).jpg - Fæ

Osteologia avium, or, A sketch of the osteology of birds (PL. 18) (8509489657).jpg - Fæ

Osteologia avium, or, A sketch of the osteology of birds (PL. 17) (8510597608).jpg - Fæ

Osteologia avium, or, A sketch of the osteology of birds (PL. 17) (8510597066).jpg - Fæ

Osteologia avium, or, A sketch of the osteology of birds (PL. 16) (8510596728).jpg - Fæ

Osteologia avium, or, A sketch of the osteology of birds (PL. 14) (8510595874).jpg - Fæ

Contributions to the anatomy of birds (1882) (14568780937).jpg - Fæ

Gymnostinops montezuma 1zz.jpg - David Stang