Marie Read / Horned Puffin (Fratercula corniculata) flying over a pattern of kelp and sea foam, photographed from above, St. Paul, Pribilof Islands, Alaska, USA. July.

Roland Seitre / Arctic Fox (Alopex lagopus) in winter, Omega Park, Montebello, Quebec, Canada

Roland Seitre / Arctic Fox (Alopex lagopus) in winter, Omega Park, Montebello, Quebec, Canada

Yva Momatiuk & John Eastcott / Arctic Fox (Alopex lagopus) in spring, looking for carrion on sea ice, North Slope near Arctic Ocean, Alaska

Yva Momatiuk & John Eastcott / Arctic Fox (Alopex lagopus) in spring, looking for carrion on sea ice, North Slope near Arctic Ocean, Alaska

Yva Momatiuk & John Eastcott / Arctic Fox (Alopex lagopus) in spring, North Slope, Alaska

Yva Momatiuk & John Eastcott / Arctic Fox (Alopex lagopus) pup inspects tundra near family's den, St George Island, The Pribilof Islands, Alaska

Yva Momatiuk & John Eastcott / Arctic Fox (Alopex lagopus) in blue phase on coastal cliff, Saint Paul Island, Pribilof Islands, Alaska

Yva Momatiuk & John Eastcott / Arctic Fox (Alopex lagopus) pup in blue phase at entrance of burrow, Saint Paul Island, Pribilof Islands, Alaska

Tom Vezo / Tufted Puffin (Fratercula cirrhata) pair on rock interacting, St Paul Island, Pribilof Islands, Alaska

Marie Read / Tufted puffins (Fratercula cirrhata) pair flying over ocean pattern of kelp and foam, St. Paul Island, Pribilof Islands, Alaska, USA, July.

Gerrit Vyn / Rock Sandpiper (Calidris ptilocnemis ptilocnemis) juvenile of the Pribilof Island race in breeding plumage, St. George Island, Alaska, USA, July

Gerrit Vyn / Rock Sandpiper (Calidris ptilocnemis ptilocnemis) adult in breeding pluage, of the Pribilof Island race, St. George Island, Alaska, USA July

Gerrit Vyn / Rock Sandpiper (Calidris ptilocnemis ptilocnemis) nest and eggs, Pribilof Island race, St. George Island, Alaska, USA July

Gerrit Vyn / Rock Sandpiper (Calidris ptilocnemis ptilocnemis) adult in breeding pluage, of the Pribilof Island race, St. George Island, Alaska, USA July

Ole Jorgen Liodden / Rock sandpiper (Calidris ptilocnemis) on shore with water splashing around it, Commander Island, Russia, Septemebr.

Tim Fitzharris / Path through grasses and pines near marsh, Saint George Island, Florida

Tim Fitzharris / Marsh and trees, Saint George Island, Florida

Jacob S. Spendelow / Grey-crowned Rosy-Finch (Leucosticte tephrocotis), Saint Paul Island, Alaska

Tim Fitzharris / Arctic Fox (Alopex lagopus) in winter, native to North America

Tom Vezo / Least Auklet (Aethia pusilla) pair, Saint Paul Island, Pribilof Islands, Alaska

Tom Vezo / Least Auklet (Aethia pusilla), Saint Paul Island, Pribilof Islands, Alaska

Tom Vezo / Least Auklet (Aethia pusilla), Saint Paul Island, Pribilof Islands, Alaska

Oriol Alamany / Least auklet (Aethia pusilla) on rock, Saint George Island, Pribilof Islands, Alaska, USA

Oriol Alamany / Parakeet auklet (Aethia psittacula) on rock, Saint George Island, Pribilof Islands, Alaska, USA

Oriol Alamany / Red-legged kittiwakes (Rissa brevirostris) on rock, Saint George Island, Pribilof Islands, Alaska, USA

Oriol Alamany / Red-legged kittiwake (Rissa brevirostris) landing on cliff, Saint George Island, Pribilof Islands, Alaska, USA

Oriol Alamany / Red-faced cormorant (Phalacrocorax urile) pair at nest on cliff, Saint George Island, Pribilof Islands, Alaska, USA

Oriol Alamany / Arctic fox (Vulpes / Alopex lagopus) on cliff top searching for seabirds eggs, Saint George Island, Pribilof Islands, Alaska, USA

Oriol Alamany / Red-legged kittiwake (Rissa brevirostris) in flight, Saint George Island, Pribilof Islands, Alaska, USA

Oriol Alamany / Birdwatcher, Eulalia Vicens, watching Least auklets (Aethia pusilla) some on rocks, others flying, in the mist, Saint George Island, Pribilof Islands, Alaska, USA

Oriol Alamany / Least auklet (Aethia pusilla) on rock, Saint George Island, Pribilof Islands, Alaska, USA

Oriol Alamany / Snowy Owl (Bubo / Nyctea scandiaca) female on an antenna, Saint George Island, Pribilof Islands, Alaska, USA

Oriol Alamany / Sea cliffs with seabirds and village, Saint George Island, Pribilof Islands, Alaska, USA

Oriol Alamany / Brunnich's guillemot / Thick billed murre (Uria lomvia) and Kittiwakes nesting on sea cliff, Saint George Island, Pribilof Islands, Alaska, USA

Oriol Alamany / Arctic tundra with Woolly lousewort (Pedicularis lanata) flowering, Saint George Island, Pribilof Islands, Alaska, USA

Oriol Alamany / Red-faced cormorant (Phalacrocorax urile) pair at nest on cliff, Saint George Island, Pribilof Islands, Alaska, USA

Oriol Alamany / Two Tufted puffins (Fratercula cirrhata) on rock, Saint George Island, Pribilof Islands, Alaska, USA

Oriol Alamany / Red-legged kittiwakes (Rissa brevirostris) nesting on cliff, Saint George Island, Pribilof Islands, Alaska, USA

Oriol Alamany / Northern fur seal (Callorhinus ursinus) colony on beach, Zapadni Rookery, Saint Paul Island, Pribilof Islands, Alaska, USA

Oriol Alamany / Alaska poppies (Papaver alaskanum) in flower, Saint Paul Island, Pribilof Islands, Alaska, USA

Oriol Alamany / Beach, Zapadni Bay with Rush Point in the distance, Saint George Island, Pribilof Islands, Alaska, USA

Oriol Alamany / Three Parakeet auklets (Aethia psittacula) on rocks, Saint Paul Island, Pribilof Islands, Alaska, USA

Oriol Alamany / Least auklets (Aethia pusilla) in flight, Saint Paul Island, Pribilof Islands, Alaska, USA

Oriol Alamany / Domestic cat (Felis catus) sitting on window-sill, next to plants with an American flag, Saint Paul Island, Pribilof Islands, Alaska, USA

Oriol Alamany / Northern fur seal (Callorhinus ursinus) colony with St George village in the distance, Saint George Island, Pribilof Islands, Alaska, USA

Oriol Alamany / Tufted puffin (Fratercula / Lunda cirrhata) sitting on rock, Saint Paul Island, Pribilof Islands, Alaska, USA

Oriol Alamany / Northern fur seal (Callorhinus ursinus) male with females and pups, Saint George Island, Pribilof Islands, Alaska, USA

Oriol Alamany / Least auklet (Aethia pusilla) flock in flight, Saint George Island, Pribilof Islands, Alaska, USA

Oriol Alamany / Northern fur seal (Callorhinus ursinus) male with females, Reef Rookery, Saint Paul Island, Pribilof Islands, Alaska, USA

Oriol Alamany / Rock sandpiper (Calidris ptilocnemis) portrait, Saint Paul Island, Pribilof Islands, Alaska, USA

Oriol Alamany / Russian orthodox church (1936) in St George village, Saint George Island, Pribilof Islands, Alaska, USA

Oriol Alamany / Blue wooden house, St Paul, Saint Paul Island, Pribilof Islands, Alaska, USA

Oriol Alamany / Jacob's ladder (Polemonium sp) flowers in the arctic tundra, Saint Paul Island, Pribilof Islands, Alaska, USA

Oriol Alamany / Least auklet (Aethia pusilla) flock flying in light mist, Saint George Island, Pribilof Islands, Alaska, USA

Oriol Alamany / Gray crowned rosy finch (Leucosticte tephrocotis) male on fence post, Saint Paul Island, Pribilof Islands, Alaska, USA

Oriol Alamany / Least auklet (Aethia pusilla) flock flying in fog, Saint George Island, Pribilof Islands, Alaska, USA

Oriol Alamany / Nootka lupines (Lupinus nootkatensis) in flower near a wooden house, Saint George Island, Pribilof Islands, Alaska, USA

Oriol Alamany / Nootka lupines (Lupinus nootkatensis) in flower, Saint Paul Island, Pribilof Islands, Alaska, USA

Oriol Alamany / Alaska poppies (Papaver alaskanum) in flower, Saint Paul Island, Pribilof Islands, Alaska, USA

Oriol Alamany / Arctic fox (Alopex lagopus) lying in grass, Saint Paul Island, Pribilof Islands, Alaska, USA

Oriol Alamany / Kittiwake (Rissa tridactyla) in flight, Saint Paul Island, Pribilof Islands, Alaska, USA

Oriol Alamany / Least auklet (Aethia pusilla) flock in flight, Zapadni Bay with Rush Point in the background, Saint George Island, Pribilof Islands, Alaska, USA

Oriol Alamany / Northern fur seal (Callorhinus ursinus) on rock calling, Saint George Island, Pribilof Islands, Alaska, USA

Oriol Alamany / Least auklets (Aethia pusilla) in flight, Saint Paul Island, Pribilof Islands, Alaska, USA

Oriol Alamany / Northern fur seal (Callorhinus ursinus) male with females and pups, Saint George Island, Pribilof Islands, Alaska, USA

Oriol Alamany / Least auklet (Aethia pusilla) perched on rock, Saint Paul Island, Pribilof Islands, Alaska, USA

Oriol Alamany / Northern fur seal (Callorhinus ursinus) male calling, Reef Rookery, Saint Paul Island, Pribilof Islands, Alaska, USA

Oriol Alamany / Snow bunting (Plectrophenax nivalis) feeding, Saint Paul Island, Pribilof Islands, Alaska, USA

Oriol Alamany / Woolly lousewort (Pedicularis lanata) in flower, Saint George Island, Pribilof Islands, Alaska, USA

Oriol Alamany / Fishing boat and crab traps with Nootka Lupines (Lupinus nootkatensis) flowering, Saint Paul Island, Pribilof Islands, Alaska, USA

Oriol Alamany / Rock sandpiper (Calidris ptilocnemis) on rock, Saint Paul Island, Pribilof Islands, Alaska, USA

Oriol Alamany / Northern fur seal (Callorhinus ursinus) females with pups, Saint George Island, Pribilof Islands, Alaska, USA

Oriol Alamany / Two Least auklets(Aethia pusilla) on seacliff, Saint Paul Island, Pribilof Islands, Alaska, USA

Oriol Alamany / Least auklets (Aethia pusilla) on rock, one landing, Saint George Island, Pribilof Islands, Alaska, USA

Oriol Alamany / Person walking along road in mist with Russian orthodox church (1936) behind, St George, Saint George Island, Pribilof Islands, Alaska, USA

Oriol Alamany / Lapland longspur / bunting (Calcarius lapponicus) male, Saint Paul Island, Pribilof Islands, Alaska, USA

Matthias Breiter / Arctic Fox (Alopex lagopus) looking at Arctic Hare (Lepus arcticus) group, Banks Island, Canada

Michio Hoshino / Arctic Fox (Alopex lagopus) investigating photographer, Alaska

Yva Momatiuk & John Eastcott / Northern Fur Seal (Callorhinus ursinus) portrait of young bull in summer, St Paul Island, Pribilof Islands, Alaska

Jim Brandenburg / Arctic Fox (Alopex lagopus) adult yawning, North America

Yva Momatiuk & John Eastcott / Northern Fur Seal (Callorhinus ursinus) adult non-territorial male on coastal rocks, St Paul Island, Pribilof Islands, Alaska

Yva Momatiuk & John Eastcott / Arctic Fox (Alopex lagopus) pup sitting near den among red scoria rocks observing surroundings, St George Island, The Pribilof Islands, Alaska

Yva Momatiuk & John Eastcott / Arctic Fox (Alopex lagopus) portrait of pup near its den in red scoria ridge, St George Island, The Pribilof Islands, Alaska

Yva Momatiuk & John Eastcott / Arctic Fox (Alopex lagopus) portrait of pup near its den in red scoria ridge, St George Island, The Pribilof Islands, Alaska

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

Tom Vezo / Brunnich's Guillemot (Uria lomvia) incubating egg on steep, rocky cliff, St Paul Island, Pribilof Islands, Alaska

Tom Vezo / Crested Auklet (Aethia cristatella) on rocky cliff, St Paul Island, Pribilof Islands, Alaska

Yva Momatiuk & John Eastcott / Northern Fur Seal (Callorhinus ursinus) female raising front flipper to cool herself, Saint Paul Island, Pribilof Islands, Alaska

Yva Momatiuk & John Eastcott / Northern Fur Seal (Callorhinus ursinus) cross-section of seal fur shows dense growth of about 300, 000 hairs per square inch, St Paul Island, Pribilof Islands, Alaska

Yva Momatiuk & John Eastcott / Northern Fur Seal (Callorhinus ursinus) three long hind flipper with vestigious toenails, St Paul Island, Pribilof Islands, Alaska

Yva Momatiuk & John Eastcott / Northern Fur Seal (Callorhinus ursinus) portrait of non-territorial adult bull in haulout, Bering Sea, St George Island, Pribilof Islands, Alaska

Yva Momatiuk & John Eastcott / Northern Fur Seal (Callorhinus ursinus) entangled sub-adult male on beach, he was disentangled and freed, St Paul Island, Pribilof Islands, Alaska

Yva Momatiuk & John Eastcott / Northern Fur Seal (Callorhinus ursinus) harem group in large rookery, St Paul Island, Pribilof Islands, Alaska

Yva Momatiuk & John Eastcott / Northern Fur Seal (Callorhinus ursinus) young male body-surfing in shallow water near bachelor haul-out beach, summer, St Paul Island, Pribilof Islands, Alaska

Yva Momatiuk & John Eastcott / Northern Fur Seal (Callorhinus ursinus) female sleeping in rookery, summer season, St Paul Island, Pribilof Islands, Alaska