Black Oystercatchers perched on a rock in Resurrection Bay, Alaska

Resurrection Bay, Alaska, USA (August 2008)

Boat trip out of Seward.

Also known more specifically as American Black Oystercatcher or Western Black Oystercatcher so it is not confused with African Black Oystercatcher.

For more information on this bird species see the following links:
American Black Oystercatcher / Internet Bird Collection
Black Oystercatcher / Bird Forum
IUCN Red List of Threatened Species / Haematopus bachmani
BirdLife International / Black Oystercatcher Haematopus bachmani