Devon Island is Canada’s sixth largest island and was first seen by Europeans in the early 17th century. The Thule culture had already settled there many centuries before, and left behind qarmat homes, made of rocks, whale bones, rock and sod walls, and skins for roofs that tell a story of over 800 years of human habitation. Other striking finds in this area are the many fossils of corals, crinoids and nautiloids that can be seen. Just across Lancaster Sound is Prince Leopold Island, a Canadian Important Bird Area, a federally listed migratory bird sanctuary, and a Key Migratory Bird Terrestrial Habitat site with large numbers of Thick-billed Murres, Northern Fulmars and Black-legged Kittiwakes that breed there.