Rock ptarmigan

Also found in: Thesaurus, Encyclopedia, Wikipedia.
(Zool.) an arctic American ptarmigan (Lagopus rupestris), which in winter is white, with the tail and lores black. In summer the males are grayish brown, coarsely vermiculated with black, and have black patches on the back.

See also: Rock

Webster's Revised Unabridged Dictionary, published 1913 by G. & C. Merriam Co.
References in classic literature ?
He came upon a valley where rock ptarmigan rose on whirring wings from the ledges and muskegs.
VVGOOGLING a runner Ptarmigan 6.15 Newbury The rock ptarmigan is a medium-sized gamebird in the grouse family.
rowani 4455 2896 Ptarmigan 542 352 (unidentified) * White-tailed Ptarmigan 355 34% 231 Lagopus leucura * Rock Ptarmigan L.
ABSTRACT--Investigations of insular populations of Rock Ptarmigan (Lagopus muta) in Alaska over time are uncommon.
The Japanese rock ptarmigan Lagopus muta japonica breeds in alpine zones in central Honshu Island, Japan.
Two species are covered by our study: the rock ptarmigan or rock grouse (Lagopus muta M.) and the willow ptarmigan or willow grouse (Lagopus lagopus L.).
Therefore [ETH] and instead of headhunting - get prepared for a treat of real hunting for food, such as musk ox, reindeer, polar hare, or rock ptarmigan, and whatever you come across with that will later be on the daily menu.
The Rock Ptarmigan (Lagopus muta) is known simply as Ptarmigan in Europe and colloquially as snow chicken or partridge in North America, where it is the official bird for the territory The ptarmigan is a plump game bird, slightly larger than a grey partridge.
The scientists studying rock ptarmigan on the Norwegian archipelago of Svalbard discovered a large difference in the running capabilities between the sexes, with the larger males able to run more efficiently and up to 50 percent faster than females.
Of those, only the willow ptarmigan and rock ptarmigan live in the Old World.