Stock Photo - Hoary Marmots Wrestling - (Marmota caligata) - Montana - Found in Alaska south to Washington-northern Oregon and most of Montana and parts of Idaho - Lives on rocky mountain slopes and hillsides and in alpine meadows - Eats a variety of grasses-green plants and seeds-often eats snow to get water it needs - Hibernates from October through February in the southern part of its range and from September to April in the northen part - Gets its name from its silvery-white fur (hoary means something that is gray or white-as if with age) - Lives in colonies - Will often wrestle with each other - Very vocal with a system of alarm calls-whistles and trills to warn off predators like coyotes-eagles and foxes - Another name is the whistler.