"ptarmigan" の定義と意味

What is a "ptarmigan"?

A ptarmigan is a species of bird that is well-adapted to survive in harsh Arctic and subarctic environments. These small to medium-sized birds have dense plumage that changes color with the seasons, allowing them to blend into their surroundings. In winter, their feathers turn white to match the snowy landscape, while in summer, they molt to a brown or mottled plumage to match the rocky terrain. Ptarmigans have feathered feet and toes that help them navigate through snow and provide insulation in cold temperatures. They are herbivorous, feeding primarily on plants, buds, and twigs. With their remarkable camouflage and ability to withstand extreme cold, ptarmigans are well-suited to thrive in their Arctic habitats