Alcidae

• Aethia
• Alca
• Alle
• Brachyramphus
• Cepphus
• Cerorhinca
• Fratercula
• Ptychoramphus
• Synthliboramphus
• Uria
• Atlantic puffin Fratercula arctica

  An auk that breeds on North Atlantic islands and spends winter at sea.

• Razorbill Alca torda

  In breeding plumage, this seabird is black above and white below. In Britain and Ireland, it breeds in colonies on coastal cliffs.

• Black Guillemot Cepphus grylle

  A seabird of northern rocky coasts that catches fish and other prey; its plumage changes with the season.

• Brünnich's Guillemot Uria lomvia

  An Arctic seabird. In Svalbard, it breeds on narrow cliff ledges; chicks head to sea with a parent before they can fly.

• Dovekie Alle alle

  A small Arctic seabird with a black breast and white belly in breeding plumage, and a white throat in nonbreeding plumage. It dives for small crustaceans and other marine prey.

• Common Guillemot Uria aalge

  The Common Guillemot is a seabird that gathers on coastal cliffs to breed and otherwise lives at sea.

• Guadalupe Murrelet Synthliboramphus hypoleucus

  This small seabird is dark above and white below. It nests on islands off western Baja California and differs from Scripps's Murrelet by having more white around the eye.

• Long-billed Murrelet Brachyramphus perdix

  The Long-billed Murrelet is an alcid that breeds along the Siberian coast and also spends time at sea. It is recorded only rarely as a vagrant in North America.

• Crested Auklet Aethia cristatella

  The Crested Auklet breeds on rocky islands in the Bering Sea and dives underwater for crustaceans and other prey.

• Tufted puffin Fratercula cirrhata

  A seabird that grows long, pale-yellow head plumes for the breeding season.

• Parakeet Auklet Aethia psittacula

  The Parakeet Auklet has a thick orange bill and white head plume and searches for food at sea in the North Pacific.

• Rhinoceros auklet Cerorhinca monocerata

  A seabird that develops a horn-like projection on its bill during breeding.