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

Klein & Hubert / Young Eagle hunter (Berkutchi) with his Golden eagle (Aquila chrysaetos) portrait, Altai, Mongolia. Model released.

Klein & Hubert / Young Eagle hunter (Berkutchi) with his Golden eagle (Aquila chrysaetos) portrait, Altai, Mongolia. Model released.

Klein & Hubert / Kazakh eagle hunter (Berkutchi) on horseback with his Golden eagle (Aquila chrysaetos) Altai, Mongolia. Model released.

Markus Varesvuo / Golden eagle (Aquila chrysaetus), Kuusamo, Finland, January.

Markus Varesvuo / Golden eagle (Aquila chrysaetus) landing in snow, Kuusamo, Finland, December..

Jack Dykinga / Bald eagle (Haliaeetus leucocephalus) perched as Snow geese (Chen caerulescens) fly by, Bosque del Apache National Wildlife Refuge, New Mexico, USA, January.

Staffan Widstrand / Tawny eagle (Aquila rapax) in flight, about to land, Zimanga Private Nature Reserve, KwaZulu Natal, South Africa

SCOTLAND: The Big Picture / Golden eagle (Aquila chrysaetos) adult with nest material on eyrie with chick showing background, Isle of Lewis, Scotland, UK., May.

David Pattyn / Golden eagle (Aquila chrysaetos) in flight in front of a vertical rocky mountain side, Gran Paradiso National Park, Aosta Valley, Italy, May

Staffan Widstrand / Golden eagle (Aquila chrysaetos) perched in snow covered tree. Kalvtrask, Vasterbotten, Lapland, Sweden. January.

Staffan Widstrand / Golden eagle (Aquila chrysaetos) in flight over snow. Kalvtrask, Vasterbotten, Lapland, Sweden. January.

Pal Hermansen / Golden eagle (Aquila crysaetos) on dead Fox (Vulpes vulpes) carcass. Trondelag, Norway. March. Remote camera shot

Ann & Steve Toon / Spotted eagle owl (Bubo africanus) subadult at nigh by water, Zimanga private game reserve, KwaZulu-Natal, South Africa, September

Markus Varesvuo / Golden eagle (Aquila chrysaetus) landing, Kuusamo, Finland, January.

Markus Varesvuo / Golden eagle (Aquila chrysaetus) Kuusamo, Finland, January.

Neil Aldridge / Portrait of an adult Spotted eagle owl (Bubo africanus) Table Mountain National Park, South Africa.

Peter Cairns / Golden eagle (Aquila chrysaetos) feeding on red deer carcass, Assynt, Scotland. Highly commended in the Habitat category of the BWPA (British Wildlife Photography Awards) 2016.

Markus Varesvuo / Golden eagle (Aquila chrysaetos) plucking Capercaillie (Tetrao urogallus) Kuusamo, Finland, April.

Ben Hall / Steppe eagle (Aquila nipalensis) in flight against autumn colours, Czech Republic, November. Captive.

Ben Hall / Eagle owl (Bubo bubo) in flight through forest, backlit at dawn, Czech Republic, November. Captive.

Ben Hall / Eurasian eagle owl (Bubo bubo) flying low over snow covered grouns with trees in background, Czech Republic, February. Captive.

Ole Jorgen Liodden / Eurasian eagle-owl (Bubo bubo) in flight, Norway, July.

Kristel Richard / Eagle hunter mounted on Mongolian horse with his female Golden eagle (Aquila chrysaetos) at Eagle Hunters Festival, near Sagsai, Bayan-Ulgii Aymag, Mongolia. September 2014..

Markus Varesvuo / Pharaoh eagle owl (Bubo ascalaphus) on sand, Morocco, March.

Markus Varesvuo / Blakiston's Fish Owl (Ketupa blakistoni) perched, Hokkaido, Japan, February.

Ben Cranke / Golden Eagle (Aquila chrysaetos) in flight, Finland. February.

Roger Powell / Spanish imperial eagle (Aquila adalberti) perched on a rock and stretching its wings, Castro Verde, Alentejo, Portugal, April.

Ben Hall / Eurasian Eagle owl (Bubo bubo) in flight through dense forest, Czech Republic, January

Peter Cairns / RF- Golden eagle (Aquila chrysaetos) sub-adult male (two years) flying down to take prey, Cairngorms National Park, Scotland, UK, captive. (This image may be licensed either as rights managed or royal...

Peter Cairns / RF- Golden Eagle (Aquila chrysaetos) adult portrait. Captive, Cairngorms National Park, Scotland, UK. (This image may be licensed either as rights managed or royalty free.)

Loic Poidevin / Bonelli's eagle (Aquila fasciata) resting on ground. Spain. February.

SCOTLAND: The Big Picture / Golden eagle chick (Aquila chrysaetos) aged approximately 5 weeks, on nest on cliff face, Isle of Lewis, Western Isles, Scotland, UK. June.

SCOTLAND: The Big Picture / Female Golden eagle (Aquila chrysaetos) on nest feeding chick, aged 5 weeks, Isle of Lewis, Outer Hebrides, Scotland, UK. June.

SCOTLAND: The Big Picture / Female Golden eagle (Aquila chrysaetos) in flight. Isle of Lewis, Outer Hebrides, Scotland, UK. June.

SCOTLAND: The Big Picture / Female Golden eagle (Aquila chrysaetos) in flight, returning to nest with prey. Isle of Lewis, Outer Hebrides, Scotland, UK. June.

SCOTLAND: The Big Picture / Female Golden eagle (Aquila chrysaetos) on nest with chick, aged 5 weeks, Isle of Lewis, Outer Hebrides, Scotland, UK. June.

SCOTLAND: The Big Picture / Female Golden eagle (Aquila chrysaetos) in flight. Isle of Lewis, Outer Hebrides, Scotland, UK. June.

Bernard Castelein / Greyish eagle owl (Bubo cinerascens) perched in tree, Faraba Banta, The Gambia.

Jussi Murtosaari / Eurasian eagle-owl (Bubo bubo) resting on snow covered branches, Finland. December.

Bruce Thomson / Wedge-tailed eagle (Aquila audax), juvenile with light coloured plumage, perching on a branch, Quilpie, Queensland, Australia.