Notes:
a small alcid of open ocean waters except when nesting on rocky shoreline ledges; forages by diving from the sea surface and then "flying" underwater using its wings.
juvenile; much like nonbreeding adult (California, USA; 2008-03-01)
breeding adult; black; big white spot on wing (California, USA; 2006-04-13)
juvenile at sea (California, USA; 2011-08-14)
juvenile diving (California, USA; 2011-08-14)
adult in breeding plumage (zoo; 2012-06-21)
dorsal view of two adults in breeding plumage (zoo; 2012-06-21)
adult in breeding plumage resting on a ledge (zoo; 2012-06-21)
side view of adult in breeding plumage (zoo; 2012-06-21)
adult in breeding plumage posing for a portrait (zoo; 2012-06-21)
