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

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, 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 Gallan / Slow motion clip of a Wedge-tailed eagle (Aquila audax) landing in nest, Mimosa National Park, New South Wales, Australia , September.

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.

SCOTLAND: The Big Picture / Female Golden eagle (Aquila chrysaetos) feeding its chick in a nest in a pine tree, Glen Tanar, Cairngorms National Park, Scotland, UK, June.

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.)

Richard Du Toit / Spotted eagle owl (Bubo africanus) two perched in tree at sunrise, Western Cape Province, South Africa.

Richard Du Toit / RF - Spotted eagle owl (Bubo africanus) immature, Kgalagadi Transfrontier Park, Northern Cape Province, South Africa.(This image may be licensed either as rights managed or royalty free.)

Guy Edwardes / Golden Eagle (Aquila chrysaetos), in flight, Bulgaria, January.

Guy Edwardes / Golden Eagle (Aquila chrysaetos) in flight, Bulgaria

Guy Edwardes / Golden Eagle (Aquila chrysaetos), Bulgaria, May.

Guy Edwardes / Golden eagle (Aquila chrysaetos) feeding on grouse,Oulanka National Park, Kuusamo, Finland, January.

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

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

Markus Varesvuo / Golden Eagle (Aquila chrysaetus) walking in snow, Kuusamo, Finland, December..

Markus Varesvuo / Golden eagle (Aquila chrysaetus) in flight, low over snow, Kuusamo, Finland, January.

Markus Varesvuo / Golden eagle (Aquila chrysaetos) Sodankyla, Lokka, Finland, April.

Markus Varesvuo / Golden eagle (Aquila chrysaetos) Sodankyla, Lokka, Finland, April.

Markus Varesvuo / White-tailed Eagle (Haliaetus albicilla) Norway, November.

Markus Varesvuo / White-tailed Eagle (Haliaetus albicilla) Norway, August.

Markus Varesvuo / White-tailed eagle (Haliaetus albicilla) taking off with fish prey, Norway, August.

Markus Varesvuo / White-tailed Eagles (Haliaetus albicilla) fighting, Sodankyla, Lokka, Finland, April.

Markus Varesvuo / White-tailed Eagles (Haliaetus albicilla) fighting, Sodankyla, Lokka, Finland, April.

Doug Gimesy / ?When over 400 'protected' Wedge-tailed Eagles (Aquila audax) were discovered killed on a Victorian farm, conservationists and animal welfare advocates were devastated. Nearly as shocking, was...

Doug Gimesy / ?Leah Tsang, ornithological expert from the Australian Museum, examines evidence skulls to determine whether they are wedge-tailed eagles (Aquila audax) as part on an ongoing investigation around the...

Doug Gimesy / ?Leah Tsang, ornithological expert from the Australian Museum, examines evidence skulls to determine whether they are Wedge-tailed Eagles (Aquila audax) as part on an ongoing investigation around the...