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Adult Swallow-tailed gull (Creagrus furcatus) in flight in the Galapagos Island Archipelago, UNESCO World Heritage Site, Ecuador, South America
Adult wandering albatross (Diomedea exulans) in flight near the Tristan da Cunha Group, South Atlantic Ocean
Adult Antarctic tern (Sterna vittata) resting on the National Geographic Explorer near Tristan da Cunha, South Atlantic Ocean
King penguin (Aptenodytes patagonicus) detail at breeding and nesting colony at St. Andrews Bay on South Georgia, Southern Ocean, Polar Regions
Adult elegant tern (Thalasseus elegans), looking for fish on Isla Carmen, Baja California Sur, Sea of Cortez, Mexico, North America
Adult American oystercatcher (Haematopus palliatus galapagensis) feeding chick along the shoreline on Bartolome Island in the Galapagos Island Group, UNESCO World Heritage Site, Ecuador, South America
Adult gentoo penguin (Pygoscelis papua) with minutes-old newly hatched chick at Gold Harbor on South Georgia
Adult gentoo penguin (Pygoscelis papua) with minutes-old newly hatched chick at Gold Harbor on South Georgia
Yellow-footed gull (Larus livens), on its nest on Isla Coronado, Baja California Sur, Sea of Cortez, Mexico, North America
Injured juvenile yellow-footed gull (Larus livens), on Isla Coronado, Baja California Sur, Sea of Cortez, Mexico, North America
Yellow-footed gull (Larus livens), eggs in nest on Isla Coronado, Baja California Sur, Sea of Cortez, Mexico, North America
Heermann's gulls (Larus heermanni), quarreling at breeding colony on Isla Rasa, Baja California, Sea of Cortez, Mexico, North Anerica
Adult brown pelicans (Pelecanus occidentalis), plunge diving for fish, Isla Carmen, Baja California Sur, Mexico, North America
Shag (Phalacrocorax aristotelis) with young. Farne Islands, Northumberland, UK
Herring gulls (Larus argentatus) following fishing boat. Firth of Forth off Bass Rock, Scotland, UK
Oystercatcher at nest (Haematopus ostralegus). UK
King penguins (Aptenodytes patagonicus) in early morning light at St. Andrews Bay, South Georgia, Polar Regions
Gentoo penguin (Pygoscelis papua) pair communicating, Damoy Point, Dorian Bay, Wiencke Island, Antarctic Peninsula, Antarctica, Polar Regions
Adult king penguins (Aptenodytes patagonicus) returning to sea from the nesting colony at Salisbury Plain, South Georgia, Polar Regions
Southern elephant seal (Mirounga leonina) pup lips being probed by a brown skua (Catharacta lonnbergi), South Georgia, Polar Regions
Adult chinstrap penguin (Pygoscelis antarctica), at breeding colony at Half Moon Island, Antarctica, Polar Regions
Adult Swallow-tailed gull (Creagrus furcatus) in the Galapagos Island Archipelago, UNESCO World Heritage Site, Ecuador, South America
Adult South Georgia Pipit (Anthus antarcticus) feeding at low tide on Prion Island, Bay of Isles, South Georgia, Polar Regions
King penguin (Aptenodytes patagonicus) in downy plumage (okum boys) on South Georgia Island, Polar Regions
Osprey (Pandion haliaetus), in flight to its nest, Isla San Lorenzo, Baja California, Sea of Cortez, Mexico, North America
Blackheaded gull (Larus ridibundus). UK
Gannets skypointing (Morus bassanus). Bass Rock, Scotland, UK
Gannet skypointing (Morus bassanus). Bass Rock, Scotland, UK
Arctic tern (Sterna paradisaea) in flight. Farne Islands, off Northumberland coast, UK. (rr)
Shags (Phalacrocorax aristotelis). Farne Islands, Northumberland, UK
Gentoo penguins (Pygoscelis papua) use a penguin highway, Neko Harbour, Anvord Bay, Antarctic Peninsula mainland, Antarctica, Polar Regions
Greater flamingo (Phoenicopterus roseus), Lagoon by the Bachas Beach, Santa Cruz (Indefatigable) Island, Galapagos, UNESCO World Heritage Site, Ecuador, South America
Adult black-browed albatross (Thalassarche melanophrys), pair in courtship display at nesting site on New Island, Falklands, South America
Adult glaucous gulls (Larus hyperboreus) at Bjornoya, Bear Island, Norway, Scandinavia, Europe
King penguin (Aptenodytes patagonicus) breeding and nesting colony on South Georgia Island, Southern Ocean, Polar Regions
Adult brown pelican (Pelecanus occidentalis), taking flight on a small islet near Isla Salsipuedes, Baja California, Mexico, North America
Adelie penguin (Pygoscelis adeliae) pair, at Brown Bluff, Antarctica, Southern Ocean, Polar Regions
Gannet (Morus bassanus) flying. Bass Rock, Scotland
Kittiwakes sitting on a huge piece of glacier ice with an expedition boat in the background, Hornsund, Svalbard, Arctic, Norway, Scandinavia, Europe
Adult and juvenile king penguins (Aptenodytes patagonicus), at breeding colony at Salisbury Plain, South Georgia, Polar Regions
King penguins (Aptenodytes patagonicus) at sunrise, in St. Andrews Bay, South Georgia, Polar Regions
King penguins (Aptenodytes patagonicus) in early morning light at Gold Harbor, South Georgia, Polar Regions
Rare leucistic gentoo penguin (Pygoscelis papua) contrasts with another gentoo, Waterboat Point, Paradise Bay, Antarctica, Polar Regions
Gentoo penguin (Pygoscelis papua) uses penguin highway past a colony, Neko Harbour, Anvord Bay, Antarctic Peninsula, Antarctica, Polar Regions
Gentoo penguins (Pygoscelis papua) use a penguin highway, visitors use their own, Neko Harbour, Antarctic Peninsula, Antarctica, Polar Regions
Southern Giant Petrel (Macronectes giganteus), moss covered rock, Torgersen Island, Antarctic Peninsula, Antarctica, Polar Regions
Pair of waved albatross (Diomedea irrorata), Espanola Island, Galapagos Islands, UNESCO World Heritage Site, Ecuador, South America
White Tailed Tropicbird (Phaethon lepturus), a seabird known as the Longtail, found in the Pacific, Atlantic and Indian Oceans, Bermda, North Atlantic, North America
Atlantic Puffin (Fratercula arctica) pair, Iceland, Polar Regions
Lesser Noddy (Anous tenuirostris), Bird Island, Republic of Seychelles, Indian Ocean, Africa
Adult elegant terns (Thalasseus elegans), at breeding colony on Isla Rasa, Baja California, Sea of Cortez, Mexico, North America
Adult elegant tern (Thalasseus elegans), looking for fish on Isla Carmen, Baja California Sur, Sea of Cortez, Mexico, North America
Heermann's gull (Larus heermanni), at breeding colony on Isla Rasa, Baja California, Sea of Cortez, Mexico, North Anerica
Gannet (Morus bassanus) flying. Bass Rock, Scotland
King penguins (Aptenodytes patagonicus) at sunrise, in St. Andrews Bay, South Georgia, Polar Regions
Adelie penguin (Pygoscelis adeliae) colony in Hope Bay, Antarctica, Polar Regions
Rare leucistic gentoo penguin (Pygoscelis papua), Gonzalez Videla Station, Waterboat Point, Paradise Bay, Antarctica, Polar Regions
Gentoo penguins (Pygoscelis papua), early morning overlooking Neko Harbour glacier, Graham Land, Antarctic Continent, Antarctica, Polar Regions
Portrait of a waved albatross (Diomedea irrorata) sitting on nest, Espanola Island, Galapagos Islands, UNESCO World Heritage Site, Ecuador, South America
Greater flamingo (Phoenicopterus roseus), Isabela (Albemarle) Island, Galapagos, UNESCO World Heritage Site, Ecuador, South America
Pelican at Playa Buena Vista Beach at sunrise, Guanacaste Province, Costa Rica, Central America
American White Pelican (Pelecanus erythrorhynchos) in flight shortly after taking off, Sonny Bono Salton Sea National Wildlife Refuge, California, United States of America, North America
Cape gannet (Morus capensis), breeding colony, Lambert's Bay, South Africa, Africa
Guadalupe fur seals (Arctocephalus townsendi), at new haul out on Las Animas Island, Baja California Sur, Sea of Cortez, Mexico, North America
Heermann's gulls (Larus heermanni), at breeding colony on Isla Rasa, Baja California, Sea of Cortez, Mexico, North Anerica
Gannet (Morus bassanus) on nest. Bass Rock, Scotland
Gannet (Morus bassanus) flying. Bass Rock, Scotland
Gannet (Morus bassanus) flying. Bass Rock, Scotland
King penguins (Aptenodytes patagonicus), Salisbury Plain, South Georgia, Antarctica, Polar Regions
Blue-footed booby (Sula nebouxii) on a nest, Punta Suarez, Espanola (Hood) Island, Galapagos, UNESCO World Heritage Site, Ecuador, South America
Northern Fulmar (Arctic Fulmar) (Fulmarus glacialis) pair, Iceland, Polar Regions
Adult Brunnich's guillemots (Uria lomvia) nesting on narrow ledges at Alkefjelet, Cape Fanshawe, Spitsbergen, Svalbard, Arctic, Norway, Scandinavia, Europe
Yellow-footed gull (Larus livens), on its nest on Isla San Esteban, Baja California, Sea of Cortez, Mexico, North America
Bull California sea lion (Zalophus californianus), on the beach in Puerto Refugio, Baja California, Sea of Cortez, Mexico, North America
Adult brown pelican (Pelecanus occidentalis), on a small islet near Isla Salsipuedes, Baja California, Mexico, North America
Adult brown pelican (Pelecanus occidentalis), in flight, Isla Carmen, Baja California Sur, Mexico, North America
Adult brown pelicans (Pelecanus occidentalis), flying in formation, Isla Carmen, Baja California Sur, Mexico, North America
Lesser blackbacked gull (Larus fuscus) in flight. Farne Islands, Northumberland, UK
Adult Brunnich's guillemots (Uria lomvia) taking flight at Alkefjelet, Cape Fanshawe, Spitsbergen, Svalbard, Arctic, Norway, Scandinavia, Europe
King penguin colony (Aptenodytes patagonicus), Saunders Island, Falklands, South America
Little gentoo penguin walking on a glacier, Brown Bluff, Antarctica, Polar Regions
Magellanic penguin (Spheniscus magellanicus) breeding colony on Carcass Island, Falkland Islands, South America
Black-browed albatross (Thalassarche melanophris) on egg in breeding colony on Saunders Island, Falkland Islands, South America
Chinstrap penguin (Pygoscelis antarcticus) in the snow, Half Moon Island, South Shetland Islands, Antarctica, Polar Regions
Brown skua (Catharacta antarctica) sitting on snow, Neko Harbour, Anvord Bay, Antarctic Peninsula, Antarctica, Polar Regions
Gentoo penguins (Pygoscelis papua), Gonzalez Videla Station, Waterboat Point, Paradise Bay, Antarctica, Polar Regions
Male eider duck (Somateria mollisima). Northumberland, UK
Gannets (Morus bassanus). Bass Rock, Scotland, UK
Gannet (Morus bassanus) landing. Bass Rock, Scotland
Guillemots (Uria aalge). Farne Islands, Northumberland
Antarctic fur seal (Arctocephalus gazella) in front of a colony of long-tailed gentoo penguins (Pygoscelis papua), Gourdin Island, Antarctica, Polar Regions
King penguin colony (Aptenodytes patagonicus), Saunders Island, Falklands, South America
Black-browed albatross (Thalassarche melanophris) in breeding colony on Saunders Island, Falkland Islands, South America
Chinstrap (Pygoscelis antarcticus), Gentoo (Pygoscelis papua) Adelie Penguins (Pygoscelis adeliae) on one iceberg, Bransfield Strait, Antarctica, Polar Regions
Magnificent frigate bird (Fregata magnificens), North Seymour Island, Galapagos Islands, UNESCO World Heritage Site, Ecuador, South America
Nazca booby (masked booby) (Sula dactylatra granti) in flight, Punta Suarez, Espanola Island, Galapagos Islands, Ecuador, South America
Black-Legged Kittiwake (Rissa tridactyla) adult feeding a chick on the nest, Iceland, Polar Regions
Adult kelp gull (Larus dominicanus) with stolen Adelie penguin egg in its bill at Brown Bluff, Antarctica, Polar Regions
Adult kelp gull (Larus dominicanus) in flight at Brown Bluff, Antarctic Sound, Antarctica, Polar Regions
Adelie penguins (Pygoscelis adeliae) at breeding colony at Brown Bluff, Antarctica, Southern Ocean, Polar Regions