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Black-browed albatross (Thalassarche melanophrys) breeding colony on Steeple Jason Island in the Falkland Islands
Black-browed albatross (Thalassarche melanophrys) breeding colony on Carcass Island in the Falkland Islands
Black-browed albatross (Thalassarche melanophrys) breeding colony on Carcass Island in the Falkland Islands
Black-browed albatross (Thalassarche melanophrys) breeding colony on New Island in the Falkland Island.
Black-browed albatross (Thalassarche melanophrys) close-up at breeding colony on Carcass Island in the Falkland Islands
Magellanic penguin (Spheniscus magellanicus) at a breeding and molting site in Estancia San Lorenzo, Argentina
Magellanic penguin (Spheniscus magellanicus) at a breeding and molting site in Estancia San Lorenzo, Argentina
Magellanic penguins (Spheniscus magellanicus) at a breeding and molting site in Estancia San Lorenzo, Argentina
Magellanic penguin (Spheniscus magellanicus) at a breeding and molting site in Estancia San Lorenzo, Argentina
Adult dovekie (Alle alle alle) breeding area on the island of Bolscheoya in the Svalbard Archipelago, Norway
Adult great skua (Stercorarius skua) being harassed by Arctic terns (Sterna paradisaea) guarding their nest sites, Svalbard, Norway
A gentoo penguin (Pygoscelis papua), breeding colony beneath a Union Jack flag flying at British Base A at Port Lockroy, Antarctica, Polar Regions
Seagulls nesting on a rocky cliff in Staithes, North Yorkshire, England, United Kingdom
Adult Atlantin puffin (Fratercula arctica) during breeding season on Sumburgh Head, Shetlands, Scotland, United Kingdom
Chinstrap penguins (Pygoscelis antarcticus) at a spectacular craggy colony, Half Moon Island, South Shetland Islands, Antarctica, Polar Regions
Black-browed albatross (Thalassarche melanophris), chicks at breeding colony on Saunders Island, Falklands, South America
Breeding elegant terns (Thalasseus elegans) return to colony on Isla Rasa, Baja California Norte, Mexico, North America
Adult bull southern elephant seal (Mirounga leonina) stretching amongst king penguins at Gold Harbour, South Georgia, Polar Regions
Tern in flight, Farne Islands, Northumberland, England, United Kingdom, Europe
Adult southern rockhopper penguin (Eudyptes chrysocome chrysocome) at breeding and molting colony, Falkland Islands, South America
Adult southern rockhopper penguin (Eudyptes chrysocome chrysocome) at breeding and molting colony, Falkland Islands, South America
Magellanic penguin (Spheniscus magellanicus), Magdalena Island, Magallanes Region, Punta Arenas, Chile, South America
King penguin (Aptenodytes patagonicus) in downy plumage (okum boys) on South Georgia Island, Polar Regions
Heermann's gull (Larus heermanni), at breeding colony on Isla Rasa, Baja California, Sea of Cortez, Mexico, North Anerica
A gentoo penguin (Pygoscelis papua), breeding colony beneath Union Jack flag, at British Base A at Port Lockroy, Antarctica, Polar Regions
Southern Elephant seal (Mirounga leonina) female and pup on snow, King penguins behind, Salisbury Plains, South Georgia Island, Antarctic, Polar Regions
King penguin (Aptenodytes patagonicus) breeding colony at St. Andrews Bay, South Georgia, Polar Regions
African penguin (jackass penguin) (Spheniscus demersus), Boulders Beach. Boulders Penguin Colony, Simon's Town, Cape Peninsula, South Africa, Africa
Gentoo penguins (Pygoscelis papua), breeding colony on Weincke Island, Naumeyer Channel, Antarctica.
California sea lion bulls (Zalophus californianus), hauled out on a small islet off San Marcos Island, Sea of Cortez, Mexico, North America
Southern giant petrel (Macronectes giganteus), feeding on a sheep carcass at West Point Island, Falkland Islands, South America
Brunnich's guillemot (Uria lomvia) breeding and nesting site at Cape Fanshawe in the Svalbard Archipelago, Norway, Arctic, Europe
Nazca booby (Sula grantii) downy chick stretching its wings to gather strength for flight in the Galapagos Islands, UNESCO World Heritage Site, Ecuador, South America
Adult black noddy (Anous minutus) breeding site on Boatswain Bird Island just off Ascension island, South Atlantic Ocean
King penguin (Aptenodytes patagonicus) detail at breeding and nesting colony at St. Andrews Bay on South Georgia, Southern Ocean, Polar Regions
Heermann's gulls (Larus heermanni), quarreling at breeding colony on Isla Rasa, Baja California, Sea of Cortez, Mexico, North Anerica
Heermann's gull (Larus heermanni), at breeding colony on Isla Rasa, Baja California, Sea of Cortez, Mexico, North Anerica
Common Terns (Sterna hirundo), in their breeding colony in June, on Brownsea Island, a nature reserve in Poole Harbour, Dorset, England, United Kingdom, Europe
Adult Imperial Shag (Phalacrocorax (atriceps) atriceps) exhibiting intense breeding plumage, New Island, Falkland Islands
Juvenile king penguins (Aptenodytes patagonicus) at breeding colony at Salisbury Plain, South Georgia, Polar Regions
Rare leucistic gentoo penguin (Pygoscelis papua) in a colony, Gonzalez Videla Station, Waterboat Point, Paradise Bay, Antarctica, Polar Regions
Gentoo penguin (Pygoscelis papua) colony, Cuverville Island, Errera Channel, Danco Coast, Antarctic Peninsula, Antarctica, Polar Regions
Elegug Stacks, occupied by a colony of Guillemots, Pembrokeshire Coast National Park, Wales, United Kingdom, Europe
King penguin (Aptenodytes patagonicus) breeding colony at Salisbury Plain, South Georgia, Polar Regions
King penguin (Aptenodytes patagonicus) courtship display at breeding colony in Gold Harbor, South Georgia, Polar Regions
King penguin (Aptenodytes patagonicus), breeding colony at Gold Harbour, South Georgia, South Atlantic, Polar Regions
Brunnich's guillemot (Uria lomvia) breeding and nesting site at Cape Fanshawe in the Svalbard Archipelago, Norway, Arctic, Europe
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
Multi-storey birdhouse towers, selective focus, India, Asia
Adult black-browed albatrosses (Thalassarche melanophris), at breeding colony on West Point Island, Falklands, South America
Gentoo penguin colony (Pygoscelis papua), Damoy Point, Wiencke Island, Antarctica, Polar Regions
Magnificent frigatebird (Fregata magnificens), breeding colony in Bahia Gabriel, Isla del Espiritu Santo, Baja California Sur, Mexico, North America
Adult black noddy (Anous minutus) breeding site on Boatswain Bird Island just off Ascension Island, South Atlantic Ocean
King penguin colony (Aptenodytes patagonicus), Macquarie Island, Sub-Antarctic, Polar Regions
Densely packed king penguin (Aptenodytes patagonicus) colony at Volunteer Point, Falkland Islands, South America
A gentoo penguin (Pygoscelis papua) breeding colony on Pleneau Island in early season, Antarctica, Polar Regions
King penguin (Aptenodytes patagonicus), oakum boys at breeding colony at Salisbury Plain, South Georgia, South Atlantic, Polar Regions
Magdalena Island, Magallanes Region, Punta Arenas, Chile, South America
Adelie penguin (Pygoscelis adeliae), breeding colony at Brown Bluff, Antarctic Sound, Antarctica, Polar Regions
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) in early morning light at Gold Harbor, South Georgia, Polar Regions
Macaroni penguin (Eudyptes chrysolophus) breeding colony in Cooper Bay, South Georgia, UK Overseas Protectorate, Polar Regions
Gentoo penguin (Pygoscelis papua) uses penguin highway past a colony, Neko Harbour, Anvord Bay, Antarctic Peninsula, Antarctica, Polar Regions
King penguin (Aptenodytes patagonicus) adults establishing partners at breeding colony in Gold Harbor, South Georgia, Polar Regions
Black-browed albatross (Thalassarche melanophris), chick at breeding colony on Saunders Island, Falklands, South America
Adult imperial shag (Leucocarbo atriceps), feeding a chick at a breeding colony on Saunders Island, Falklands, South America
Breeding elegant terns (Thalasseus elegans) return to colony on Isla Rasita at sunset, Baja California Norte, Mexico, North America
Gentoo penguin colony (Pygoscelis papua), Petermann Island, Antarctica, Polar Regions
Black-legged kittiwakes (Rissa tridactyla) colony on the cliffs of Alkerfjellet, Svalbard, Arctic
Heermann's gull (Larus heermanni), at breeding colony on Isla Rasa, Baja California, Sea of Cortez, Mexico, North Anerica
Adelie penguin (Pygoscelis adeliae), breeding colony at Brown Bluff, Antarctic Sound, Antarctica, Polar Regions
Male upland goose (Chloephaga picta) in flight in front of a penguin colony at Volunteer Point, Falkland Islands, South America
Adelie penguin (Pygoscelis adeliae) colony in Hope Bay, Antarctica, Polar Regions
Heermann's gull (Larus heermanni) breeding colony in the inner lagoon at Isla Rasa, Baja California, Mexico, North America
Chinstrap penguin (Pygoscelis antarcticus), leaping from the sea at breeding colony on Barrientos Island, Antarctica, Polar Regions
Tufted puffin (Fratercula cirrhata), breeding colony at South Marble Island, Glacier Bay National Park, Alaska, United States of America, North America
Adelie penguins (Pygoscelis adeliae), leaping near breeding colony, Heroina Island, Danger Island Group, Antarctica, Polar Regions
Breeding elegant terns (Thalasseus elegans) return to colony on Isla Rasa, Baja California Norte, Mexico, North America
Gentoo penguins colony (Pygoscelis papua), Mikkelsen, Trinity Island, Antarctica, Polar Regions
Cape gannet (Morus capensis), breeding colony, Lambert's Bay, South Africa, Africa
Black-legged Kittiwakes (Rissa tridactyla) flying and nesting, Diskobukta, Edgeoya Island, Svalbard Archipelago, Norway, Arctic
Heermann's gulls (Larus heermanni), at breeding colony on Isla Rasa, Baja California, Sea of Cortez, Mexico, North Anerica
Colony of Antarctic Gentoo Penguins on rocky beach, Antarctica, Polar Regions
King Penguins (Aptenodytes patagonicus) preparing to enter the water, Salisbury Plain, South Georgia Island, Antarctic, Polar Regions
The African penguin colony on Boulder's Beach, Cape Town, South Africa, Africa
A huge King Penguin (Aptenodytes patagonicus) breeding colony on the beaches of Gold Harbor, South Georgia, Polar Regions
King penguin (Aptenodytes patagonicus), oakum boys at breeding colony in Gold Harbour, South Georgia, South Atlantic, Polar Regions
Adult brown pelicans (Pelecanus occidentalis), on a small islet near Isla Salsipuedes, Baja California, Mexico, North America
King penguins (Aptenodytes patagonicus) at breeding and nesting colony at Salisbury Plain, South Georgia, UK Overseas Protectorate, Polar Regions
World's largest colony of Frigate Birds (Fregata magnificens) in the lagoon, Barbuda, Antigua and Barbuda, Leeward Islands, West Indies, Caribbean, Central America
Black-legged Kittiwakes (Rissa tridactyla) flying and nesting, Diskobukta, Edgeoya Island, Svalbard Archipelago, Norway, Arctic
King penguin colony (Aptenodytes patagonicus), Gold Harbour, South Georgia, Antarctic, Polar Regions
Bull California sea lion (Zalophus californianus), on the beach in Puerto Refugio, Baja California, Sea of Cortez, Mexico, North America
Adelie penguin (Pygoscelis adeliae) breeding colony at Heroina Island, Danger Islands, Weddell Sea, Antarctica, Polar Regions
Close-up of a mass of king penguins (Aptenodytes patagonicus) in a tightly packed colony at Volunteer Point, Falkland Islands, South America
Gannets (Morus bassanus). Bass Rock, Scotland, UK
King penguin colony (Aptenodytes patagonicus), Saunders Island, Falklands, South America
Magellanic penguin (Spheniscus magellanicus) breeding colony on Carcass Island, Falkland Islands, South America