Ptarmigan, which live in cold ecosystems, are not strongly affected by fluctuations in seasonal weather at two populations studied in Colorado, report scientists. Animals that live at high elevations ...

The rock ptarmigan is the official bird for the Canadian territory of Nunavut, where it is known as the aqiggiq. (Photo: Michael F. Horn/Flickr) As a seasonally camouflaged species, the rock ptarmigan ...

A Yukon biologist says ptarmigan and gyrfalcon populations could be in decline across Canada's northwestern Yukon territory. Dave Mossop says the fluctuations in these two "key" species could be a ...

Animals that live at high elevations are often assumed to be at risk for extinction as habitats warm and change. But a new study led by Colorado State University researchers found that ptarmigan, ...

An image of a ptarmigan captured by avalanche forecasters in the Northern Cairngorms Grouse with plumage that turns white in autumn have been easier to spot because of the milder winter. Several ...

A National Trust for Scotland (NTS) survey failed to find any ptarmigan on Goatfell and the Arran mountains - its most southerly outpost. This has prompted fears that the bird is no longer breeding ...