Rock Ptarmigan are part of the Grouse family. They are also a group of birds in the order Galliformes. Chickens are in that order as well.
This means that they are heavy bodied birds and ground feeders.
Rock Ptarmigan are around 13 to 14 inches long. They have a wing span of 21 to 24 inches.
In the winter, they have white feathers. In the warm months, they have black markings. They have feathered legs and toes.
They live in temperate climates. You won’t see them hanging around arctic areas. And certainly not in Antarctica.
All the pictures are from Wikimedia Commons, except for the last picture.
In winter by, Boaworm.