- Small grouse; medium to large chicken-like bird.
- Thick bodied.
- Tail moderately short, rounded.
- Completely white in winter.
- Barred grayish brown in summer.
- Wings and tail white.
Male DescriptionBreeding male mostly grayish-brown, with broad band of black markings across chest. Eye combs are red. Nonbreeding male is completely white with black eyes and bill.
Female DescriptionBreeding female shows finely barred plumage, with yellowish tint contrasting with black or dark brown. Nonbreeding female is completely white with black eyes and bill.
Immature DescriptionSimilar to adult.