James Dunbar / Male Garden spider (Araneus) attaching silk to prey, England, UK, September.

Ismaele Tortella / White tailed eagle (Haliaeetus albicilla) flying, Lofoten, Norway, August.

John Chan / Red-tailed hawk (Buteo jamaicensis) feeding on a squirrel, Southern California, USA.

John Chan / White-tailed kite (Elanus leucurus) perched in a tree, stretching, Southern California, USA.

John Chan / Red-tailed hawk (Buteo jamaicensis) feeding on a squirrel, Southern California, USA.

John Chan / Red-tailed hawk (Buteo jamaicensis) feeding on a squirrel, Southern California, USA.

John Chan / Red-tailed hawk (Buteo jamaicensis) feeding on a squirrel, Southern California, USA.

John Chan / Red-shouldered hawk (Buteo lineatus) preening, Southern California, USA.

John Chan / White-tailed kite (Elanus leucurus) landing on a perch, Southern California, USA.

John Chan / White-tailed kite (Elanus leucurus) hovering whilst hunting, Southern California, USA.

John Chan / White-tailed kite (Elanus leucurus) hovering while seaching for prey, Southern California, USA.

John Chan / White-tailed kite (Elanus leucurus) preening, Southern California, USA.

John Chan / White-tailed kite (Elanus leucurus) landing on a perch and scratching, Southern California, USA.

John Chan / Red-tailed hawk (Buteo jamaicensis) feeding on a rabbit, Southern California, USA, June.

John Chan / Cooper's hawk (Accipiter cooperii) nestling sleeping Southern California, USA.

John Chan / Cooper's hawk (Accipiter cooperii) nestling pecking sibling, Southern California, USA, June.

John Chan / Juvenile White-tailed kite (Elanus leucurus) ruffling its feathers, Southern California, USA.

John Chan / Osprey (Pandion haliaetus) taking flight with a partially eaten Mullet (Mugilidae), Southern California, USA.

John Chan / Osprey (Pandion haliaetus) feeding on a Mullet (Mugilidae), Southern California, USA.

John Chan / Osprey (Pandion haliaetus) feeding on a fish, perched on a dead branch, Bolsa Chica Ecological Reserve, California, USA, October.

John Chan / Osprey (Pandion haliaetus) feeding on a fish, perched on a dead branch, Bolsa Chica Ecological Reserve, California, USA, October.

John Chan / Osprey (Pandion haliaetus) feeding on a fish, perched on a dead branch, Bolsa Chica Ecological Reserve, California, USA, October.

Roman Willi / Common black hawk (Buteogallus anthracinus) juvenile feeding on frog whislt perched on branch, Osa Peninsula, Costa Rica. February.

Lewis Jefferies / Common black hawk (Buteogallus anthracinus) perched in forest canopy and surveying the forest floor, Corcovado National Park, Costa Rica.

Lewis Jefferies / Common black hawk (Buteogallus anthracinus) perched on one leg, on branch in forest whilst surveying the forest floor, Corcovado National Park, Costa Rica.

Manuel Gracia / Booted eagle (Hieraaetus pennatus) plucking a Rock dove (Columba livia). The eagle had caught the dove while it was drinking from a pool. Seville, Spain.

Manuel Gracia / Booted eagle (Hieraaetus pennatus) looking around. The animal then flies out of the frame. Seville, Spain.

Manuel Gracia / Booted eagle (Hieraaetus pennatus) perched and looking around, Seville, Spain.

Manuel Gracia / Booted eagle (Hieraaetus pennatus) standing in a shallow pond. The animal repeatedly picks up a branch and walks around with it in its beak, in an attempt to remove it from the water. Seville, Spain.

Manuel Gracia / Booted eagle (Hieraaetus pennatus) bathing in a shallow pond. Seville, Spain.

Manuel Gracia / Booted eagle (Hieraaetus pennatus) head-shot. The animal blinks showing its nictitating membrane. Seville, Spain.

Manuel Gracia / Eurasian sparrowhawk (Accipiter nisus) perched in a tree. The bird ruffles its feathers and fans out its tail to dry and then flies out of the frame. Seville, Spain.

Manuel Gracia / Eurasian sparrowhawk (Accipiter nisus) preening while perched in a tree. The bird ruffles its feathers and fans out its tail to dry. Seville, Spain.

Manuel Gracia / Eurasian sparrowhawk (Accipiter nisus) sitting in a stream after bathing. Then the bird flies off and lands on a nearby branch. While perched, it ruffles its feathers and fans out its tail to dry. Sev...

Manuel Gracia / Eurasian sparrowhawk (Accipiter nisus) bathing in a stream, Seville, Spain.

Manuel Gracia / Eurasian sparrowhawk (Accipiter nisus) bathing in a stream, Seville, Spain.

Manuel Gracia / Eurasian sparrowhawk (Accipiter nisus) perched at the edge of a stream. The bird looks around and then flies out of the frame, landing in the stream behind. Seville, Spain.

Manuel Gracia / Eurasian sparrowhaw (Accipiter nisus) walking into a shaded stream before begining to bathe, Seville, Spain, January.

Vishal Jadhav / Tawny eagle (Aquila rapax) eating prey from the ground before taking off, Maharashtra, India, August.

Vishal Jadhav / Short-toed snake eagle (Circaetus gallicus) preening on rock after a shower, Maharashtra, India, July.

Neil Aldridge / Osprey (Pandion haliaetus) landing at its nest, Cairngorms National Park, Scotland, UK, July.

Hermann Brehm / Common buzzard (Buteo buteo) perched on dead wood cleaning its beack against it, Bavaria, Germany, January.

Hermann Brehm / Common buzzard (Buteo buteo) feeding on a mouse, Bavaria, Germany, January.

Neil Aldridge / Red kite (Milvus milvus) hovering whilst looking for prey, Cambridgeshire, England, UK, October.

Neil Aldridge / Black collared Hawk (Busarellus nigricollis) perched on a branch calling, Guyana, January.

David Perpinan / Great tit (Parus major) visiting nest located in broken street light to feed chicks, leaves with fecal sac, Barcelona, Spain, May.

David Perpinan / European bee-eater (Merops apiaster) arriving and killing and eating an insect, Cuenca, Spain, June.

Neil Challis / Red kite (Milvus milvus) fledgling perched whilst waiting for parent, Ashridge, Hertfordshire, UK, July.

Neil Challis / Red kite (Milvus milvus) fledgling stretching wings, Ashridge, Hertfordshire, UK, July.

Neil Challis / Pair of Red kites (Milvus milvus) perched on Ash tree, Finemere Wood, Buckinghamshire, UK, May.

Neil Challis / Red kite (Milvus milvus) preening while in flight, Aston Abbots, Buckinghamshire, August.

Dave Watts / Male Hoopoe (Upupa epops) perched with prey in beak, joined by female, male exchanges prey, France.

Dave Watts / Hoopoe (Upupa epops) male with prey lands on perch then flies off, France

John Chan / Juvenile female Hen harrier (Circus cyaneus) perched on the ground, with shorebirds foraging in foreground, Bolsa Chica Ecological Reserve, Southern California, USA, November.

Brian Bevan / Male Marsh harrier (Circus aeruginosus) feeding in meadow, Poland, June.

John Chan / Juvenile Red-tailed hawk (Buteo jamaicensis) taking flight, Bolsa Chica Ecological Reserve, Southern California, USA.