Corvus, Linnæus, Syst. Nat. 1735. (Type, Corvus corax, L.)
Corvus carnivorus.
12442
Gen. Char. The nasal feathers lengthened, reaching to or beyond the middle of the bill. Nostrils large, circular, overhung behind by membrane, the edges rounded elsewhere. Rictus without bristles. Bill nearly as long as the tarsus, very stout; much higher than broad at the base; culmen much arched. Wings reaching nearly or quite to the tip of the tail, the outer four primaries sinuated internally. Tarsi longer than the middle toe, with a series of small scales on the middle of each side separating the anterior scutellate portion from the posterior continuous plates. Sides of the head occasionally with nearly naked patches. Tail graduated or rounded.
PLATE XXXVII
1. Quiscalus purpureus. ♂ Pa., 1363.