Danny Green / Bald eagle (Haliaeetus leucocephalus), two perched on rocks in front of frozen waterfall. Alaska, USA, February.

Jack Dykinga / Bald eagle (Haliaeetus leucocephalus) perched, Bosque del Apache National Wildlife Refuge, New Mexico, USA.

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

Ernie Janes / Bald eagle (Haliaeetus leucocephalus) portrait, captive, occurs in North America.

Danny Green / Bald eagle (Haliaeetus leucocephalus) in flight, Alaska, USA, February

Danny Green / Bald eagle (Haliaeetus leucocephalus) head portrait, Alaska, USA, February

Danny Green / Bald eagle (Haliaeetus leucocephalus) in flight, Alaska, USA, February

Floris van Breugel / Bald eagle (Haliaeetus leucocephalus) flying in front of the massive wall of ice, Margerie Glacier, Glacier Bay National Park, Alaska, USA, August 2014.

Inaki Relanzon / Bald Eagle (Haliaeetus leucocephalus) taking a fish from water. Homer, Kenai Fjord, South Alaska, USA, March.

Barry Bland / American bald eagle (Haliaeetus leucocephalus) large flock on snow, Homer, Alaska, January 2008

Barry Bland / American bald eagle (Haliaeetus leucocephalus) three perched, Homer, Alaska, Jan

David Tipling / Group of Bald Eagles {Haliaeetus leucocephalus} shoreline, Alaska, USA.

David Tipling / Bald Eagle {Haliaeetus leucocephalus} in flight, Alaska, USA.

David Tipling / Bald Eagle {Haliaeetus leucocephalus} in flight, Alaska, USA.

Lynn M Stone / American bald eagle fishing {Haliaeetus leucocephalus} Alaska, USA.

Lynn M Stone / American bald eagle fishing {Haliaeetus leucocephalus} Alaska, USA.

Lynn M Stone / American bald eagle catching fish {Haliaeetus leucocephalus} Alaska, USA.

Lynn M Stone / American bald eagle {Haliaeetus leucocephalus} fishing, Alaska, USA

Lynn M Stone / American bald eagle landing close up {Haliaeetus leucocephalus} Alaska, USA.

Rolf Nussbaumer / American bald eagle about to catch fish {Haliaeetus leucocephalus} Alaska, USA

Rolf Nussbaumer / American bald eagle juvenile feeding on salmon {Haliaetus leucocephalus} Alaska

Rolf Nussbaumer / American bald eagle catching fish {Haliaetus leucocephalus} Alaska, USA

Rolf Nussbaumer / American bald eagle at nest in tree {Haliaeetus leucocephalus} Florida, USA

Tom Vezo / Bald eagle {Haliaeetus leucocephalus}. Kenai Peninsula, Alaska.

John Downer / American bald eagles in trees {Haliaeetus leucocephalus} Chilkat, Alaska, USA

Lynn M Stone / American bald eagle fishing {Haliaeetus leucocephalus} Alaska, USA

John Downer / Four American bald eagles perched in tree{Haliaeetus leucocephalus} Chilkat, Alaska, USA

Lynn M Stone / American bald eagle portrait against USA flag {Haliaeetus leucocephalus} Not available for ringtone/wallpaper use.

Jose Schell / American bald eagle head portrait

Lynn M Stone / American Bald Eagles (Haliaeetus leucocephalus) perched in snow Alaska

Lynn M Stone / American Bald Eagle perched in snow, Alaska

Lynn M Stone / American bald eagle with flowers, Alaska

Lynn M Stone / Bald eagles. Alaska, USA

Lynn M Stone / Bald eagle portrait. Alaska, USA

Lynn M Stone / Bald eagle in flight against blue sky, Alaska

TOM MANGELSEN / American bald eagles on perch (Haliaeetus leucocephalus) Alask

Lynn M Stone / American Bald Eagle in snow, Alaska

Louis Gagnon / American Bald Eagle portrait. (Haliaeetus leucocephalus) beak open - rehab centre, Canada

Suzi Eszterhas / Bald Eagle (Haliaeetus leucocephalus) flying, Amaknak Island, Alaska

Alan Murphy/ BIA / Bald Eagle (Haliaeetus leucocephalus) fishing, Alaska

Alan Murphy/ BIA / Bald Eagle (Haliaeetus leucocephalus) fishing, Alaska

Marion Vollborn/ BIA / Bald Eagle (Haliaeetus leucocephalus) flying, Alaska

Alan Murphy/ BIA / Bald Eagle (Haliaeetus leucocephalus) hunting, Alaska

Alan Murphy/ BIA / Bald Eagle (Haliaeetus leucocephalus) in snowfall, Alaska

Alan Murphy/ BIA / Bald Eagle (Haliaeetus leucocephalus) hunting in snow fall, Alaska

Alan Murphy/ BIA / Bald Eagle (Haliaeetus leucocephalus) hunting, Alaska

Alan Murphy/ BIA / Bald Eagle (Haliaeetus leucocephalus) flying, Alaska

Alan Murphy/ BIA / Bald Eagle (Haliaeetus leucocephalus) striking at fish, Alaska