Rock ptarmigan

| genus = Lagopus | species = muta | authority = (Montin, 1781) | subdivision_ranks = Subspecies | subdivision = some 20–30, including: * ''L. m. muta''
Scandinavian ptarmigan * ''L. m. rupestris''
Canadian rock ptarmigan * ''L. m. helvetica''
Alpine ptarmigan * ''L. m. japonica''
Japanese ptarmigan * ''L. m. millaisi''
Scottish ptarmigan * ''L. m. hyperborea''
Svalbard ptarmigan | synonyms = * ''Tetrao mutus'' Montin, 1781 * ''Lagopus mutus'' (''lapsus'', see below) | range_map = Rock Ptarmigan Lagopus muta distribution map.png | range_map_caption = Rock Ptarmigan range }}

The rock ptarmigan (''Lagopus muta'') is a medium-sized game bird in the grouse family. It is known simply as the ptarmigan in Europe. It is the official bird for the Canadian territory of Nunavut, where it is known as the ''aqiggiq'' (ᐊᕿᒡᒋᖅ), and the official game bird for the province of Newfoundland and Labrador. In Japan, it is known as the ''raichō'' (雷鳥), which means "thunder bird". It is the official bird of Gifu, Nagano, and Toyama Prefectures and is a protected species nationwide. Unlike many arctic bird species, ptarmigan do not gain substantial mass to hibernate over winter. Provided by Wikipedia