Range / Habitat: Exclusively marine, breeding on coastal cliffs and islands, restricted to Arctic zones with open water. Winters offshore of breeding grounds, where often found at see in large flocks.
Field Notes: Medium-sized waterbird with black head, neck and back. Clean white underparts. Non-breeding adults have white throats. Common Murre without white gape and with streaking on flanks. Razorbill more stocky, with stouter bill with white ring at the tip.
Personal Notes: Also seen at the Latrabjarg cliffs in Iceland.