Habitat Type: Marine
Comments: Pelagic; normally in deep water or hauled out on heavy drift ice (Reeves and Ling 1981). Rarely on land or shore-fast ice except in Gulf of St. Lawrence (Kovacs and Lavigne 1986). Pups are born usually at center of large ice floe (Reeves and Ling 1981), in traditional breeding areas. Pupping habitat generally is transient and unstable.