_Centrocercus_, SWAINSON, F. B. A. II, 1831, 496. (Type, _Tetrao
urophasianus_, BON.)
GEN. CHAR. Tail excessively lengthened (longer than the wings), cuneate,
the feathers all lanceolate and attenuate. Lower throat and sides of
the neck with stiffened, apparently abraded, spinous feathers. Nasal
fossæ extending very far forward, or along about two thirds of the
culmen. Color mottled yellowish-grayish and dusky above; beneath whitish
with black abdominal patch. Stomach not muscular, but soft, as in the
Raptorial birds!
Centrocercus urophasianus, (BON.) SW.