Tui De Roy / Galapagos Penguin (Spheniscus mendiculus) portrait, Bartolome Island, Galapagos Islands, Ecuador

Kevin Schafer / Razorbill (Alca torda), Isle of May, Scotland

Konrad Wothe / Little Auk (Alle alle) trio, Spitsbergen, Norway

Konrad Wothe / Little Auk (Alle alle), Spitsbergen, Norway

Konrad Wothe / Little Auk (Alle alle), Spitsbergen, Norway

Scott Leslie / Atlantic Puffin (Fratercula arctica) group on cliff, Baccalieu Island, Newfoundland and Labrador, Canada

Theo Allofs / Magellanic Penguin (Spheniscus magellanicus) group walking on beach, Falkland Islands

Theo Allofs / Magellanic Penguin (Spheniscus magellanicus) group walking on beach, Falkland Islands

Theo Allofs / Gentoo Penguin (Pygoscelis papua) mother and chick, South Georgia Island

Theo Allofs / Gentoo Penguin (Pygoscelis papua) pair on beach, Falkland Islands

PREMAPHOTOS / Caterpillar larva of Sallow kitten moth (Harpyia / Furcula furcula) showing countershading, UK

Flip de Nooyer / Atlantic Puffin (Fratercula arctica) three perching on coastal rock, Europe

Flip de Nooyer / Atlantic Puffin (Fratercula arctica) with feathers in beak to be used as nesting material during breeding season, Europe

Flip de Nooyer / Atlantic Puffin (Fratercula arctica) group on rock, Europe

Flip de Nooyer / Common Murre (Uria aalge) adult portrait, Europe

Yva Momatiuk & John Eastcott / Atlantic Puffin (Fratercula arctica) portrait of adult holding Sand Lance (Ammodytes sp) in beak to feed chick in burrow, summer breeding season, Newfoundland, Canada

Tom Vezo / Parakeet Auklet (Cyclorrhynchus psittacula) calling, St Paul Island, the Pribilof Islands, Alaska

Flip de Nooyer / Razorbill (Alca torda) adult swimming, Europe

Flip de Nooyer / Atlantic Puffin (Fratercula arctica) portrait of adult during breeding season showing colorful bill and rictal rosette in corner of mouth, Europe

Gerry Ellis / Common Murre (Uria aalge) group on rocks, pelagic, North Pacific and Atlantic

Flip de Nooyer / Atlantic Puffin (Fratercula arctica) adult with fish in its beak, Europe

Jim Brandenburg / Black-bellied Plover (Pluvialis squatarola) in winter plumage, Florida