Dave Watts / Wedge-tailed eagle {Aquila audax fleayi} tasmanian sub species, adult portrait, Australia

Markus Varesvuo / Golden Eagle (Aquila chrysaetos) portrait in snow, Utajarvi, Finland February

Stefan Huwiler / Golden Eagle (Aquila chrysaetos), adult defending carcass from Red Fox (Vulpes vulpes), Sinite Kamani National Park, Bulgaria, Europe. February

Stefan Huwiler / Golden Eagle (Aquila chrysaetos) adult defending carcass from Red Fox (Vulpes vulpes), Sinite Kamani National Park, Bulgaria, Europe. February. Commended, Behaviour : Birds category, Wildlife Photogra...

Staffan Widstrand / Golden eagle (Aquila chrysaetos) close up in snow with Red fox (Vulpes vulpes). Photographed at a wildlife watching facility, the fox was shot by local hunters as a standard wildlife management practi...

Markus Varesvuo / Golden eagle (Aquila chrysatus) with wings outstretched in snow, Utajarvi, Finland, January

Roy Mangersnes / Golden eagle (Aquila chrysaetos) perched on a dead pine tree, Southern Norway, December

Roy Mangersnes / Golden eagle (Aquila chrysaetos) perched on dead pine tree, Southern Norway, December

Laurie Campbell / Golden eagle (Aquila chrysaetos) chick, one week, in eyrie showing egg-tooth on tip of bill, Argyll, Scotland, early May

Laurie Campbell / Golden eagle (Aquila chrysaetos) falconer's bird perched in scots pine (controlled) Southern Scotland, February

Markus Varesvuo / Golden Eagle (Aquila chrysaetos) in flight with curled primary feathers against a snowy background. Kuusamo, Finland, February.

Markus Varesvuo / Golden Eagle (Aquila chrysaetos) pouncing in flight with claws brandished. Kuusamo, Finland, February.

Markus Varesvuo / Golden Eagle (Aquila chrysaetos) landing in snow. Kuusamo, Finland, February.

Markus Varesvuo / Golden Eagle (Aquila chrysaetos) flying low over snow with talons brandished. Kuusamo, Finland, February.

Lassi Rautiainen / Golden eagle (Aquila chrysaetos) about to land on snow, Oulanka NP, Finland, February

Alex Hyde / Golden eagle (Aquila chrysaetos) male. Captive, UK.

Alex Hyde / Golden eagle (Aquila chrysaetos) sequence showing protective nictitating membrane over eye. Captive bird, UK.

Juan Carlos Munoz / Close-up of the feathers of a Spanish imperial eagle (Aquila adalberti). Sierra de Andujar Natural Park, Jaen, Andalusia, Spain

Juan Carlos Munoz / Close-up of the talons of a Spanish imperial eagle (Aquila adalberti). Sierra de Andujar Natural Park, Jaen, Andalusia, Spain, Captive

Juan Carlos Munoz / Spanish imperial eagle (Aquila adalberti) stooping to catch a lizard. Sierra de Andujar Natural Park, Jaen, Andalusia, Spain, Captive

Juan Carlos Munoz / Spanish imperial eagle (Aquila adalberti) perching on a rock. Sierra de Andujar Natural Park, Jaen, Andalusia, Spain, Captive

Juan Carlos Munoz / Spanish imperial eagle (Aquila adalberti) in flight. Sierra de Andujar Natural Park, Jaen, Andalusia, Spain, Captive

Kevin Schafer / Ascension frigatebird (Fregata aquila) male soaring high, Ascension island, Atlantic Ocean, Vulnerable species

Kevin Schafer / Ascension frigatebird (Fregata aquila) flock soaring high, Ascension island, Atlantic Ocean, Vulnerable species

John Waters / Golden eagle (Aquila chrysaetos) adult female taking off, flying over mountain landscape, trained bird photographed during filming in Glenveagh National Park, Donegal, Republic of Ireland. August 2010

John Waters / Golden eagle (Aquila chrysaetos) adult female taking off, flying over mountain landscape, trained bird photographed during filming in Glenveagh National Park, Donegal, Republic of Ireland. August 2010

Dietmar Nill / Golden eagle (Aquila chrysaetos) in flight over snow, Alps, Austria, controlled conditions

Juan Carlos Munoz / Spanish imperial eagle (Aquila adalberti) portrait, Spain Captive

Peter Cairns / Golden eagle (Aquila chrysaetos) sub-adult male (two years) in flight over Cairngorms National Park, Scotland, UK, captive

Peter Cairns / Golden eagle (Aquila chrysaetos) sub-adult male (two years) flying down to take prey, Cairngorms National Park, Scotland, UK, captive

Eric Baccega / Head portrait of Golden eagle (Aquila chrysaetos) captive

Peter Cairns / Golden eagle (Aquila chrysaetos) sub-adult female in flight, Cairngorms National Park, Scotland, UK, captive

Wild Wonders of Europe / Shpilenok / Two Steppe eagle (Aquila nipalensis) chicks in their nest. Cherniye Zemli (Black Earth) Nature Reserve, Kalmykia, Russia, May 2009 Wild Wonders kids book.

Chris Gomersall / Golden eagle (Aquila chrysaetos) sub-adult in winter snow shower, captive bird, Speyside, Scotland, February

Angelo Gandolfi / Golden Eagle (Aquila chrysaetos) swooping with folded wings and extended tallons. Canyon del Ebro y Rudron, Castilla y Leon, Spain. Digital composite

Angelo Gandolfi / Golden Eagle (Aquila chrysaetos) swooping. The sequence of folding wings to gain speed. Canyon del Ebro y Rudron, Castilla y Leon, Spain. COMPOSITE IMAGE.

Angelo Gandolfi / Golden Eagle (Aquila chrysaetos) swooping with folded wings and extended tallons. Canyon del Ebro y Rudron, Castilla y Leon, Spain. Digital composite

Angelo Gandolfi / Golden Eagle (Aquila chrysaetos) swooping with folded wings to gain speed. Canyon del Ebro y Rudron, Castilla y Leon, Spain. Digital composite

Angelo Gandolfi / Golden Eagle (Aquila chrysaetos) swooping with folded wings and extended tallons. Canyon del Ebro y Rudron, Castilla y Leon, Spain. Digital composite

Wild Wonders of Europe / Widstrand / Golden eagle (Aquila chrysaetos) taking off, Flatanger, Norway, November 2008

Angelo Gandolfi / Golden Eagle (Aquila chrysaetos) swooping with folded wings and extended tallons. Canyon del Ebro y Rudron, Castilla y Leon, Spain. Digital composite

Angelo Gandolfi / Golden Eagle (Aquila chrysaetos) swooping with wings completely folded. Canyon del Ebro y Rudron, Castilla y Leon, Spain.

Edwin Giesbers / Golden eagle (Aquila chrysaetos) captive

Wild Wonders of Europe / López / Lesser spotted eagle (Aquila pomarina) perched in tree, Latvia, June 2009

Wild Wonders of Europe / Shpilenok / Two Steppe eagle (Aquila nipalensis) chicks, Cherniye Zemli (Black Earth) Nature Reserve, Kalmykia, Russia, May 2009

Wild Wonders of Europe / Shpilenok / Steppe eagle (Aquila nipalensis) on nest with chicks, Cherniye Zemli (Black Earth) Nature Reserve, Kalmykia, Russia, May 2009

Wild Wonders of Europe / Shpilenok / Steppe eagle (Aquila nipalensis) on nest, Cherniye Zemli (Black Earth) Nature Reserve, Kalmykia, Russia, May 2009

Wild Wonders of Europe / Widstrand / Golden eagle (Aquila chrysaetos) in tree with dead bird, wings out stretched, Flatanger, Norway, November 2008

Wild Wonders of Europe / Widstrand / Golden eagle (Aquila chrysaetos) in flight over snow, Flatanger, Norway, November 2008 Wild Wonders kids book.

David Tipling / Eagle hunters with golden eagles (Aquila chrysaetos) on route to the Eagle Hunters festival near Ulgii Western Mongolia, October 2009. Winner of the Indigenous Cultures Award in Nature's Best Competit...

Wild Wonders of Europe / Zacek / Golden eagle (Aquila chrysaetos) portrait, Kitkajoki, Kuusamo, Oulanka National Park, Finland, February 2009

Wild Wonders of Europe / Wothe / Eastern imperial eagle (Aquila heliaca) perched on branch, East Slovakia, Europe, June 2008

Wild Wonders of Europe / Wothe / Imperial Eagle flying to the mountains east of Kosice, Slanske vrchy, Eastern Slovakia, Europe, June 2008

Wild Wonders of Europe / Wothe / Eastern imperial eagle (Aquila heliaca) in flight, East Slovakia, Europe, June 2008

Wild Wonders of Europe / Wothe / Eastern imperial eagle (Aquila heliaca) in flight, East Slovakia, Europe, June 2008

Wild Wonders of Europe / Wothe / Eastern imperial eagle (Aquila heliaca) at nest with young, East Slovakia, Europe, June 2008

Wild Wonders of Europe / Wothe / Two Eastern imperial eagle (Aquila heliaca) chicks in the nest, East Slovakia, Europe, June 2008

Wild Wonders of Europe / Wothe / Eastern imperial eagle (Aquila heliaca) carrying Hare prey in flight, East Slovakia, Europe, June 2008

Igor Shpilenok / Two Steller's sea eagles {Haliaeetus pelagicus} and a Golden eagle {Aquila chrysaetos} Kuril Lake, Kamchatka, Far East Russia

Pete Cairns / Golden eagle (Aquila chrysaetos) landing in woodland clearing,Cairngorms NP, Scotland, UK Captive

Pete Cairns / Golden Eagle (Aquila chrysaetos) flying, captive, Cairngorms NP, Scotland, UK.

Pete Cairns / Golden Eagle (Aquila chrysaetos) adult portrait, captive, Cairngorms NP, Scotland, UK.

Pete Cairns / Golden Eagle (Aquila chrysaetos) adult portrait, captive, Cairngorms NP, Scotland, UK.

Pete Cairns / Golden Eagle (Aquila chrysaetos) adult portrait, close up of eye, captive, Cairngorms NP, Scotland, UK.

Pete Cairns / Golden Eagle (Aquila chrysaetos) close up of eye, captive, Cairngorms NP, Scotland, UK.

Anup Shah / Tawny eagle {Aquila Rapax} defending Lesser flamingo carcass from scavenging Sacred ibis{Threskiornis aethopicus} and Marabou storks {Leptoptilos crumeniferus} Lake Nakuru, Kenya.

Anup Shah / Three Tawny eagles {Aquila Rapax} feeding on Lesser flamingo carcass, surrounded byMarabou storks {Leptoptilos crumeniferus} Lake Nakuru, Kenya.

Anup Shah / Marabou stork {Leptoptilos crumeniferus} and Tawny eagle {Aquila Rapax} fighting over Lesser flamingo carcass, Lake Nakuru, Kenya.

Hanne & Jens Eriksen / Greater spotted eagle in flight {Aquila clanga}. Muscat, Oman, December

Michael Richards / John Downer / Verreaux's eagle decorates its nest with aromatic leaves which act as as insect deterrent. (Resolution restriction - image digitised from film, 'Weird Nature' tv series)

Niall Benvie / Golden Eagle 4th year male portrait captive (Aquila chrysaetos) Scotland 2002

Niall Benvie / Golden eagle portrait (Aquila chrysaetos) 4th year male. Scotland.

Hanne & Jens Eriksen / Steppe eagle, 1st winter {Aquila rapax nipalensis} Muscat, Oman, Middle East

Hanne & Jens Eriksen / Steppe eagle in flight, Oman, {Aquila rapax nipalensis} 2nd winter bird

Pete Cairns / Golden eagle perched {Aquila chrysaetos} Scotland captive

LYNN M. STONE / Golden eagle {Aquila chrysaetos} Alaska, US - captive

Asgeir Helgestad / Golden eagle close up in snow {Aquila chrysaetos} Norway

John Cancalosi / Verreaux's eagle / Black eagle {Aquila verreauxii} feeding South Africa

Dave Watts / Wedge tailed eagle soaring {Aquila audax} Australia

Pete Cairns / Golden eagle drying wings after rain {Aquila chrysaetos} Highlands, Scotland, UK

John Downer / Tawny eagle {Aquila rapax} feeding on Zebra carcass, Zimbabwe

John Downer / Golden eagle head portrait {Aquila chrysaetos} powerful hook bill, Switzerland

Michael Richards / John Downer / Eagle cannot open a tortoise's shell so it has to pick it up in talons and drop it on stones to break open (Resolution restriction - image digitised from film, 'Weird Nature' tv series)

Pete Cairns / Golden eagle {Aquila chrysaetos} Scotland

Pete Cairns / Golden eagle perched in tree {Aquila chrysaetos} Scotland, UK

John Downer / Golden eagle portrait with Matterhorn in background, Italy

Jose B. Ruiz / Booted eagle (Aquila pennata) female feeding chick at nest in pine woods, Murcia, Spain.

Jose Ruiz / Booted eagle at nest with chick (Aquila pennata) Spain Pine woods, Murcia.

John Downer / Golden Eagle head portrait

Bengt Lundberg / Golden eagle on branch, wings outstretched, Sweden

Niall Benvie / Golden eagle, 4th year male, Scotland. Captive bird.

Juan Manuel Borrero / Illustration of Golden Eagle (Aquila chrysaetos) portrait and flying. Pencil and watercolor painting.

Juan Manuel Borrero / Illustration of Golden Eagle (Aquila chrysaetos). Pencil and watercolor painting.

Juan Manuel Borrero / Illustration of threatened species of birds of Spain. Iberian Guillemot (Uria aalge ibericus), Cantabrian capercallie (Tetrao urogallus cantabricus), White backed woodpecker (Dendrocopos leucotos), Be...