The bill of the Gadwall Duck, showing the comb-like 'teeth' that they are known for.
"Shell of a Bivalve Mollusk, inner surface. ad.a., depression showing the attachment of the anterior…
The head of a bald eagle. The distictive white plumage of this area earned it its nickname.
Genus Harpyia, it is one of the largest, most fierce, and powerful eagles. It has a crest of…
This small bird is native to Java, Sumatra, and New Guinea. It is noted for its large bill.
A group of humming birds with particularly long and narrow beaks, well-adapted for sipping nectar from…
European Kites are very miscellaneous feeders, but depend largely on offal, and in the eastern tropics…
Tetrapturus albidus. Also called a billfish or spearfish, "the dorsal fin is low or moderately developed,…
"In ornithology, having the beak broad and deeply cleft, as a swallow, swift, or goatsucker" or nightjar.…
Head of an eagle owl. It has large eyes for seeing at night, and a hooked beak for snaring its prey.
"Skull of Spatularia, with the long beak removed, the anterior (asc) and posterior (psc) semicircular…
"Generic details of a Myiadestes townsendi (Townsend's Flycatching Thrush); bill and foot nat. size,…
"The Toucan, in ornithology, is the popular name of any bird of the genus Rhamphastos. They are all…
"One of the smaller Vulturidae, of a genus differing from the true vultures in the slender bill, which…
Having the plumage extremely lax and soft; rounded wings much shorter thn long, narrow, graduated tail;…