Elegant tern (Thalasseus elegans) in flight with a small fish at breeding colony on Isla Rasa, Baja California, Mexico, North America

Willet (Tringa semipalmata) in breeding plumage stretching its wings, Antelope Island State Park, Utah, United States of America, North America

Gentoo penguin (Pygoscelis papua), breeding colony at the Chilean Research Station Base Gonzalez Videla, Antarctica, Polar Regions

King penguin (Aptenodytes patagonicus) breeding colony at Gold Harbor, South Georgia, Polar Regions

King penguin (Aptenodytes patagonicus) breeding colony at Gold Harbor, South Georgia, Polar Regions

Adult Imperial shags (Phalacrocorax atriceps) at breeding colony on small islets just outside Ushuaia, Beagle Channel, Argentina, South America

Flamingo breeding site, Laguna Chaxa, Salar de Atacama, Atacama Desert, Norte Grande, Chile, South America

Adelie penguin (Pygoscelis adeliae), breeding colony on Paulet Island, Weddell Sea, Antarctica, Polar Regions

Gentoo penguins (Pygoscelis papua), returning to sea at the breeding colony on Cuverville Island, Antarctica, Polar Regions

Gentoo penguin (Pygoscelis papua), breeding colony in Neko Harbor, Antarctica, Polar Regions

A male pin-tailed whydah (Vidua macroura), in breeding plumage in Tarangire National Park, Tanzania, East Africa, Africa

Sunrise on king penguin (Aptenodytes patagonicus) breeding colony at Gold Harbor, South Georgia, Polar Regions

King penguin (Aptenodytes patagonicus) breeding colony at Salisbury Plain, South Georgia, Polar Regions

Gentoo penguins (Pygoscelis papua), mating at breeding colony on Barrientos Island, Antarctica, Polar Regions

Gentoo penguins (Pygoscelis papua), at breeding colony on Barrientos Island, Antarctica, Polar Regions

Gentoo penguin pair (Pygoscelis papua), mating at breeding colony site on Cuverville Island, Antarctica, Polar Regions

King penguin (Aptenodytes patagonicus), adult feeding a chick at breeding colony in Gold Harbour, South Georgia, South Atlantic, Polar Regions

King penguin (Aptenodytes patagonicus), breeding colony at Gold Harbour, South Georgia, Polar Regions

King penguins (Aptenodytes patagonicus), breeding colony at Gold Harbour, South Georgia, Polar Regions

Adelie penguins (Pygoscelis adeliae), returning to sea from their breeding colony at Brown Bluff, Antarctica, Polar Regions

Adult, non-breeding Arctic tern (Sterna paradisaea) on ice in Paradise Bay, Antarctica, Polar Regions

Ostrich (Struthio camelus), captive in ostrich breeding farm, Cumbria, England, United Kingdom, Europe

Adelie penguin (Pygoscelis adeliae) breeding colony at Heroina Island, Danger Islands, Weddell Sea, Antarctica, Polar Regions

King penguins (Aptenodytes patagonicus) at breeding colony in Gold Harbor, South Georgia, Polar Regions

Adult Heermann's gull (Larus heermanni), in flight near breeding colony at Isla Rasa, Baja California, Mexico, North America

King penguins (Aptenodytes patagonicus) at breeding and nesting colony at Salisbury Plain, South Georgia, UK Overseas Protectorate, Polar Regions

Caspian tern (Sterna caspia) in breeding plumage in flight, Salton Sea, California, United States of America, North America

Gentoo penguin chick (Pygoscelis papua) molting at the breeding colony on Cuverville Island, Antarctica, Polar Regions

Adelie penguin (Pygoscelis adeliae), breeding colony on Paulet Island, Weddell Sea, Antarctica, Polar Regions

Adult Imperial Shag (Phalacrocorax atriceps) at breeding colony on New Island, Falklands, UK Overseas Protectorate, Polar Regions

Adelie penguin (Pygoscelis adeliae), breeding colony on Paulet Island, Weddell Sea, Antarctica, Polar Regions

King penguin (Aptenodytes patagonicus) breeding colony at Gold Harbor, South Georgia, Polar Regions

Adelie penguins (Pygoscelis adeliae), on a rock at a breeding colony on Joinville Island, Antarctica, Polar Regions

Guillemot breeding colony, Uria aalge, Isle of May, Fife, Scotland, United Kingdom, Europe

Adult black-browed albatross (Thalassarche melanophris) landing in breeding colony on Steeple Jason Island, Falkland Islands, UK Overseas Protectorate, South America

Adelie penguins (Pygoscelis adeliae), at their breeding colony at Brown Bluff, Antarctica, Polar Regions

King penguin (Aptenodytes patagonicus), breeding colony in Gold Harbour, South Georgia, South Atlantic, Polar Regions

Gentoo penguin (Pygoscelis papua) breeding and nesting colony at Neko Harbour, Antarctica, Polar Regions

Arctic tern, Sterba paradisaea, Isle of May breeding colony, Fife, Scotland, United Kingdom, Europe

Great egret (Ardea alba) in breeding plumage, Sonny Bono Salton Sea National Wildlife Refuge, California, United States of America, North America

Female mallard duck with newly hatched ducklings, Anas platyrhynchos, on a stream in springtime at Swinbrook, the Cotswolds, UK

Female mute swan, Cygnus olor, and her cygnet in Southrop in the Cotswolds, Gloucestershire, UK

Female mute swan, Cygnus olor, and her cygnet in Southrop in the Cotswolds, Gloucestershire, UK

Female mute swan, Cygnus olor, and her cygnet in Southrop in the Cotswolds, Gloucestershire, UK

Female mallard duck with 14 newly hatched ducklings, Anas platyrhynchos, on a stream in springtime at Swinbrook, the Cotswolds, UK

Female mallard duck with new ducklings, Anas platyrhynchos, strolling on garden patio in springtime at Swinbrook, the Cotswolds, UK

Mallard duckling among daisies in meadow in The Cotswolds, Oxfordshire, England, United Kingdom

Female Canada Goose, Branta canadensis, with young goslings, on River Windrush at Swinbrook, the Cotswolds, UK

Moorhen's nest, with seven eggs laid, made with twigs among iris plants in a pond in Swinbrook, the Cotswolds, Oxfordshire, UK

Moorhen's nest, with seven eggs laid, made with twigs among iris plants in a pond in Swinbrook, the Cotswolds, Oxfordshire, UK

Moorhen's nest, with seven eggs laid, made with twigs among iris plants in a pond in Swinbrook, the Cotswolds, Oxfordshire, UK

Female mallard duck with new ducklings, Anas platyrhynchos, on a stream in springtime at Swinbrook, the Cotswolds, UK

Female mallard duck and ducklings in stream in The Cotswolds, Oxfordshire, England, United Kingdom

Female mute swan building her nest, Donnington, Gloucestershire, United Kingdom

Baby buzzard in barn, Asthall, The Cotswolds, Oxfordshire, England, United Kingdom

One living and one dead Blue-footed Booby bird on the Galapagos Islands, Ecuador

Mallard ducklings just a few days old, Swinbrook, Oxfordshire, England

Blue-footed Booby bird on the Galapagos Islands, Ecuador sheltering young chicks

Australasian gannet (Morus serrator), breeding colony at Cape Kidnappers, North Island, New Zealand, Pacific

Blue-footed Booby bird on the Galapagos Islands, Ecuador sheltering young birds

Australasian gannet (Morus serrator), breeding colony at Cape Kidnappers, North Island, New Zealand, Pacific

Poultry breeding at Akepe Catholic Monastery, Akepe, Togo, West Africa, Africa

Breeding pair of kelp geese (Chloephaga hybrida), Wildlife Conservation Society Preserve of Karukinka, Strait of Magellan, Chile, South America

Cattle egret (Bubulcus ibis) in breeding plumage in captivity, Rio Grande Zoo, Albuquerque Biological Park, Albuquerque, New Mexico, United States of America, North America

European Bee-eater (Merops apiaster) pair perched on sand bank at nest hole, Bulgaria

Dalmatian pelican (pelecanus crispus) portrait of adult in breeding plumage, lake kerkini, greece

Ruff (philomachus pugnax) male displaying at lek, in breeding plumage, varanger, norway

Dalmatian pelican (pelecanus crispus) portrait of adult in breeding plumage, lake kerkini, greece

European Bee-eater (Merops apiaster) pair perched together on twig, Bulgaria

Rook (corvus frugilegus) several males trying to mate with a female, oxfordshire, uk

Great egret. Ardea alba. Close-up, showing breeding colours on face. Florida, usa

Mallard (anas platyrhynchos) several males trying to mate with one female, slimbridge, uk

Ruff (philomachus pugnax) male displaying at lek, in breeding plumage, varanger, norway

Guano in an Adelie Penguin, Pygoscelis adeliae, colony at Madder Cliffs, Suspiros Bay, at the west end of Joinville Island, Antarctica. Adelie's are a true Antarctic species which are suffering as a result of climate change, The Antarctic Peninsular, their only breeding grounds, is one of the fastest warming areas on the planet. This is causing Adelies to migrate south. They are reducing in numbers, they feed almost exclusively on Krill, which is also declining as a result of climate change.

Mallard (anas platyrhynchos) several males trying to mate with one female, slimbridge, uk

Dalmatian pelican (pelecanus crispus) close-up of face, adult in breeding plumage, lake kerkini, greece

A Light Mantled Albatross, or Light Mantled Sooty Albatross, Phoebetria palpebrata, on South Georgia, on nesting cliffs at Grytviken.

A Wandering Albatross; Diomedea exulans, the bird with the largest wing span on the planet, at around 11 feet 6 inches, nesting on Prion Island, South Georgia, Southern Ocean.

A Wandering Albatross; Diomedea exulans, the bird with the largest wing span on the planet, at around 11 feet 6 inches, nesting on Prion Island, South Georgia, Southern Ocean.

A Wandering Albatross; Diomedea exulans, the bird with the largest wing span on the planet, at around 11 feet 6 inches, nesting on Prion Island, South Georgia, Southern Ocean.

A Black Browed Albatross (Thalassarche melanophris) sitting on a nest in a mixed nesting colony of albatross's and Rockhopper Penguins (Eudyptes chrysocome) on Westpoint island in the Falkland Islands off argentina, in South America. Albatrosses are globally thratened by long line fishing boats who are responsible for killing thousands of birds.

Rockhopper Penguins (Eudyptes chrysocome) washing in a stream on Westpoint island in the Falkland Islands off argentina, in South America. Numbers off rocxkhoppers have declined substantially, partly due to competition with commercial fishing and partly due to climate change, which causes their prey food to migrate to cooler waters.

A pair of Black Browed Albatross (Thalassarche melanophris) Allopreening to reinforce the pair bond in a nesting colony on Westpoint island in the Falkland Islands off Argentina, in South America. Albatrosses are globally thratened by long line fishing boats who are responsible for killing thousands of birds.

A pair of Black Browed Albatross (Thalassarche melanophris) Allopreening to reinforce the pair bond in a nesting colony on Westpoint island in the Falkland Islands off Argentina, in South America. Albatrosses are globally thratened by long line fishing boats who are responsible for killing thousands of birds.

A mixed Black Browed Albatross (Thalassarche melanophris) and Rockhopper Penguins (Eudyptes chrysocome) nesting colony on Westpoint island in the Falkland Islands off Argentina, in South America, being watched by a group on a wildlife tourist trip.

On Friday 11th July 2014, the Young Ospreys that nest on Bassenthwaite in the Lake District National Park, Cumbria, UK, are ringed and fitted with a satelite tracker. they are ringed by Pete Davis, a licensed bird ringer, and the satelite tracker is fitred by Roy Dennis. Roy is theonly person in the UK, licensed to fit satelite trackers to birds of prey. The tracing is part of the Bassenthwaite Osprey project, to see whereabouts in Africa the young migrate to, before returning hopefully to the UK to nest.Ospreys recolonized the Lake district in 2001, after an absence ovf over 150 years. In the last fourteen years of breeding over half a million people have visited the project to view these spectacular fish eating birds.

On Friday 11th July 2014, the Young Ospreys that nest on Bassenthwaite in the Lake District National Park, Cumbria, UK, are ringed and fitted with a satelite tracker. they are ringed by Pete Davis, a licensed bird ringer, and the satelite tracker is fitred by Roy Dennis. Roy is theonly person in the UK, licensed to fit satelite trackers to birds of prey. The tracing is part of the Bassenthwaite Osprey project, to see whereabouts in Africa the young migrate to, before returning hopefully to the UK to nest.Ospreys recolonized the Lake district in 2001, after an absence ovf over 150 years. In the last fourteen years of breeding over half a million people have visited the project to view these spectacular fish eating birds.

On Friday 11th July 2014, the Young Ospreys that nest on Bassenthwaite in the Lake District National Park, Cumbria, UK, are ringed and fitted with a satelite tracker. they are ringed by Pete Davis, a licensed bird ringer, and the satelite tracker is fitred by Roy Dennis. Roy is theonly person in the UK, licensed to fit satelite trackers to birds of prey. The tracing is part of the Bassenthwaite Osprey project, to see whereabouts in Africa the young migrate to, before returning hopefully to the UK to nest.Ospreys recolonized the Lake district in 2001, after an absence ovf over 150 years. In the last fourteen years of breeding over half a million people have visited the project to view these spectacular fish eating birds.

On Friday 11th July 2014, the Young Ospreys that nest on Bassenthwaite in the Lake District National Park, Cumbria, UK, are ringed and fitted with a satelite tracker. they are ringed by Pete Davis, a licensed bird ringer, and the satelite tracker is fitred by Roy Dennis. Roy is theonly person in the UK, licensed to fit satelite trackers to birds of prey. The tracing is part of the Bassenthwaite Osprey project, to see whereabouts in Africa the young migrate to, before returning hopefully to the UK to nest.Ospreys recolonized the Lake district in 2001, after an absence ovf over 150 years. In the last fourteen years of breeding over half a million people have visited the project to view these spectacular fish eating birds.

King Penguins on Salisbury Plain, South Georgia, with passengers from an expedition cruise.

European Bee-eater (Merops apiaster) pair perched on branch, facing each other, Bulgaria

Mallard (anas platyrhynchos) several malse trying to mate with one female, slimbridge, uk

Mute Swan, Hoeckerschwan, Cygnus olor, breeding, Switzerland

A Light Mantled Albatross, or Light Mantled Sooty Albatross, Phoebetria palpebrata, on South Georgia, on nesting cliffs at Grytviken.

A female Goosander, Mergus merganser,with young ducklings hitching a ride on her back on the river Brathay, Ambleside, Lake District, UK,

King Penguins in the world's second largest King Penguin colony on Salisbury Plain, South Georgia, Southern Ocean.

Snowy egret (egretta thula) florida, usa, standing in water, feathers ruffled, showing red facial colour of breeding adult

Lesser Spotted Woodpecker (Dendrocopos minor) female leaving nest hole with debris, Bulgaria

A Black Browed Albatross (Thalassarche melanophris) chick sitting on a nest in a mixed nesting colony of albatross's and Rockhopper Penguins

A Black Browed Albatross (Thalassarche melanophris) chick sitting on a nest in a mixed nesting colony of albatross's and Rockhopper Penguins