Tawny owl (Strix aluco), captive, Cumbria, England, United Kingdom, Europe

Adult osprey (Pandion haliaetus), on nest built over the years, Isla Rasa, Baja California, Mexico, North America

Adult gentoo penguin (Pygoscelis papua) on nest with chicks at Gold Harbor, South Georgia Island, Polar Regions

Yellow-billed stork (Mycteria ibis) on nest, Chobe River, Botswana, Africa

Black browed albatross chick, West Point Island, Falkland Islands, South America

Imperial shags (Leucocarbo atriceps) colony, Sea Lion Island, Falkland Islands, South America

White Stork (Ciconia ciconia), Donana National and Natural Park, Andalusia, Spain, Europe

Oystercatcher at nest (Haematopus ostralegus). UK

An adult imperial shag (Leucocarbo atriceps), returning to the nesting colony with nest material, Ushuaia, Argentina, South America

A young great frigatebird (Fregata minor) in the nest on North Seymour Island, Galapagos, Ecuador, South America

Lesser masked weaver (Ploceus intermedius), at nest, Kruger National Park, South Africa, Africa

Black-Legged Kittiwake (Rissa tridactyla) adult feeding a chick on the nest, Iceland, Polar Regions

Adult jabiru stork (Jabiru mycteria), on a nest near Pouso Allegre, Mata Grosso, Pantanal, Brazil, South America

Antarctic shags (Leucocarbo bransfieldensis), feeding chick on Brabant Island, Antarctica, Polar Regions

Great frigatebird (Fregata minor) chick on the nest on North Seymour Island, Galapagos Islands, UNESCO World Heritage Site, Ecuador, South America

Stork and nest (Ciconia ciconia), Varska, Estonia, Baltic States, Europe

Black-Legged Kittiwake (Rissa tridactyla) adult and two chicks on the nest, Iceland, Polar Regions

Black-Legged Kittiwake (Rissa tridactyla) adult and chick on the nest, Iceland, Polar Regions

Gannet (Morus bassanus) on nests. Bass Rock, Scotland

Kittiwakes (Larus tridactyla), on nests. Farne Islands, Northumberland, UK

Mountain bluebird (Sialia currucoides), female exiting nest cavity, Yellowstone National Park, Wyoming, United States of America, North America

White Stork (Ciconia ciconia), Donana National and Natural Park, Andalusia, Spain, Europe

Adult blue-footed boobies (Sula nebouxii,) nest exchange at Punta Pitt, San Cristobal Island, Galapagos, Ecuador, South America

A gentoo penguin (Pygoscelis papua) chick with its parent on Barrientos Island, Aitcho Island Group, Antarctica, Polar Regions

White Stork, (Ciconia ciconia), Joessen, NRW, Germany

Swallow-tailed bee-eater (Merops hirundineus), at nest hole, Kgalagadi Transfrontier Park, South Africa, Africa

Black browed albatross chick, West Point Island, Falkland Islands, South America

Osprey (Pandion haliaetus) fledglings on nest, Yellowstone National Park, UNESCO World Heritage Site, Wyoming, United States of America, North America

Adult gentoo penguin (Pygoscelis papua) on nest with chicks at Gold Harbor, South Georgia Island, Polar Regions

Gentoo penguins (Pygoscelis papua) squabbling with each other at nest site on New Island, Falkland Islands, South America

Mountain bluebird (Sialia currucoides), male at nest cavity, Yellowstone National Park, Wyoming, United States of America, North America

Magellanic penguin (Spheniscus magellanicus) in its nesting burrow, Patagonia, Chile, South America

Adult black-legged kittiwakes (Rissa tridactyla), fighting at nest site on the cliffs at southern Bjornoya, Svalbard, Norway, Europe

Adult black-browed albatross (Thalassarche melanophris), on its nest on Saunders Island, Falkland Islands, South America

Swallow-tailed bee-eater (Merops hirundineus) at its nest opening, Kgalagadi Transfrontier Park, encompassing the former Kalahari Gemsbok National Park, South Africa, Africa

Speke's Weaver (Ploceus spekei) nesting in acacia tree, Ndutu Conservation Area, Serengeti, Tanzania, East Africa, Africa

Speke's Weaver (Ploceus spekei) nesting in acacia tree, Ndutu Conservation Area, Serengeti, Tanzania, East Africa, Africa

Ringed plover (Charadrius hiaticula) on nest. Farne Islands, Northumbelrand, UK

Shags on nests (Phalacrocorax aristotelis). Farne Islands, Northumberland, UK

A juvenile great frigatebird (Fregata minor) in the nest on North Seymour Island, Galapagos, Ecuador, South America

A juvenile great frigatebird (Fregata minor) in the nest on North Seymour Island, Galapagos, Ecuador, South America

Black browed albatross, West Point Island, Falkland Islands, South America

Swallow-tailed bee-eater (Merops hirundineus), Kgalagadi Transfrontier Park, South Africa

Close-up of a Black-browed Albatross on nest, Falkland Islands, South Atlantic

Black browed albatross, West Point Island, Falkland Islands, South America

Oystercatcher (Haematopus ostralegus) on nest, South Walney Reserve, Cumbria, England, United Kingdom, Europe

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

Great Spotted Woodpecker makes nesting hole in Poplar tree , Hampstead, London, United Kingdom

2008 Olympic Games gold Bird's Nest Stadium model in souvenir shop, Wangfujing Street, Beijing, China

Blue-footed Booby bird protecting her eggs on Galapagos Islands, Ecuador

Male Frigate bird with inflated pouch, Galapagos Islands, Ecuador

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

Great Spotted Woodpecker makes nesting hole in Poplar tree , Hampstead, London, United Kingdom

Construction at Olympics site, The Beijing National Stadium, The Bird's Nest, China

Traffic on motorway passes Olympics site of The Beijing National Stadium (Bird's Nest), China

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

Wren's nest nestled secretly hidden among ivy leaves on a wall in The Cotswolds, Oxfordshire, England, UK

Clsoe-up of a Wandering Albatross on nest, Prion Island, South Georgia, Atlantic

Olympic Stadium (The Bird's Nest), Beijing, China, Asia

Olympic Stadium (The Bird's Nest), Beijing, China, Asia

Bird nest soup, Chinatown, Bangkok, Thailand, Southeast Asia, Asia

Black-legged kittiwake (Rissa tridactyla), Isle of Lunga, Inner Hebrides, Scotland, United Kingdom, Europe

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

White stork, stork, ciconia ciconia, weissstorch, storch, female standing in its nest, spring, oetwil am see, zuerich, switzerland

Mute swan (cygnus olor) family of cygnets on nest, abbotsbury, uk

Mute swan (cygnus olor) egg about to hatch, abbotsbury, uk

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.

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.

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.

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.

Secretarybird (sagittarius serpentarius) masai mara, kenya, male and female on nest, in silhouette at sunset.

White storks (Ciconia ciconia) nest on the roof of the El Badi Palace in Marrakech, Morocco, North Africa, Africa

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 Black Browed Albatross (Thalassarche melanophris) in a 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.

White stork, ciconia ciconia, couple building its nest, spring, oetwil am see, zuerich, switzerland

White stork, ciconia ciconia, couple standing in its nest, courtship, spring, oetwil am see, zuerich, switzerland

Southern royal albatross (diomedea epomophora) sitting on nest, campbell island, zealand

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

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

Red-rumped Swallow ( Hirundo daurica) gathering mud for nest building, Bulgaria

Mute Swan, Hoeckerschwan, Cygnus olor, breeding, Switzerland

Wandering albatross (diomedea exulans) prion island, south georgia, chick sat on nest, close-up

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.

White stork, stork, ciconia ciconia, couple standing in its nest, courtship, spring, oetwil am see, zuerich, switzerland

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

White stork, stork, ciconia ciconia, mother and young standing in nest, spring, oetwil am see, zuerich, switzerland

Mute Swan, Hoeckerschwan, Cygnus olor, breeding, Switzerland

Mute swan (cygnus olor) adult turning eggs on nest, abbotsbury, uk

White stork, stork, ciconia ciconia, weissstorch, storch, couple standing in its nest, courtship, spring, oetwil am see, zuerich, switzerland

Weaver at it's nest in Uganda.

Wandering albatross. Diomedea exulans. On nest, albatross island, south georgia diomedea exulans

Black-browed albatross (diomedea melanophoris) falkland islands, sat on nest, showing egg and colony behind