Carnivorous , feeding on small rodents, Arctic hares and a range of birds.
Up to 9 years in wild and 20 years in captivity.
Sexually mature at 2 years. Mating and egg laying occurs between May and July . The 4-10 eggs are incubated by the female for 33 days. The young fledge after 43 days.
Skuas, gulls, Arctic fox and gray wolf.