Jean E. Roche / Common crane (Grus grus) flock in flight during winter. Camargue, Provence-Alpes-Cotes-d'Azur, France. January.

Jean E. Roche / Common crane (Grus grus) flock foraging in field during winter. Camargue, Provence-Alpes-Cotes-d'Azur, France. January.

Jean E. Roche / Common crane (Grus grus) flock foraging in field during winter with three in flight. Camargue, Provence-Alpes-Cotes-d'Azur, France. January.

Jean E. Roche / Murmuration of European starlings (Sturnus vulgaris) flying over marsh. Camargue, Provence-Alpes-Cotes-d'Azur, France. February.

Jean E. Roche / Common crane (Grus grus) flock in flight at sunset. Camargue, Provence-Alpes-Cotes-d'Azur, France. January.

Jean E. Roche / Murmuration of European starlings (Sturnus vulgaris) flying over marsh at sunset. Camargue, Provence-Alpes-Cotes-d'Azur, France. February.

Jean E. Roche / Common crane (Grus grus) flock in flight at sunset. Camargue, Provence-Alpes-Cotes-d'Azur, France. January.

Roland Seitre / Great blue heron (Ardea herodias) spearing Greater Siren Salamander (Siren lacertina) with beak, Lake Apopka, Florida, USA.

Roland Seitre / Great blue heron (Ardea herodias) swallowing Greater Siren Salamander (Siren lacertina), Lake Apopka, Florida, USA.

Roland Seitre / Great blue heron (Ardea herodias) swallowing Greater Siren Salamander (Siren lacertina), Lake Apopka, Florida, USA.

Roger Powell / Purple heron (Ardea purpurea) walking past a net over a fishpond, K'Far Ruppin kibbutz fishponds, Jordan Valley, Israel, March.

Roger Powell / White-breasted kingfisher (Halcyon smyrnensis) perched on an irrigation pipe next to a fishpond, with the feathers of migratory songbirds it has predated surrounding it, K'Far Ruppin kibbutz, Jor...

Roger Powell / White-breasted kingfisher (Halcyon smyrnensis) with ring, calling in reed bed beside stream, after bathing, K'Far Ruppin kibbutz, Jordan Valley, Israel, March.

Roger Powell / White-breasted kingfisher (Halcyon smyrnensis) calling in reed bed beside stream, after bathing, K'Far Ruppin kibbutz, Jordan Valley, Israel, March.

Roger Powell / Pied kingfisher (Ceryle rudis) female landing in a bush next to mate after digging nest hole, K'Far Ruppin kibbutz fishponds, Jordan Valley, Israel, March.

Roger Powell / Pied kingfisher (Ceryle rudis) pair displaying whilst perched on bush, K'Far Ruppin kibbutz fishponds, Jordan Valley, Israel, March.

Roger Powell / Pied kingfisher (Ceryle rudis) female landing in a bush next to mate after digging nest hole, K'Far Ruppin kibbutz fishponds, Jordan Valley, Israel, March.

Roger Powell / Pied kingfisher (Ceryle rudis) male landing in a bush next to mate after digging nest hole, K'Far Ruppin kibbutz fishponds, Jordan Valley, Israel, March.

Roger Powell / Pied kingfisher (Ceryle rudis) male landing on favoured fishing post, K'Far Ruppin kibbutz fishponds, Jordan Valley, Israel, March.

Roger Powell / Pied kingfisher (Ceryle rudis) male landing on favoured fishing post with tadpole, K'Far Ruppin kibbutz fishponds, Jordan Valley, Israel, March.

Roger Powell / Pied kingfisher (Ceryle rudis) male landing on favoured fishing post, K'Far Ruppin kibbutz fishponds, Jordan Valley, Israel, March.

Roger Powell / Pied kingfisher (Ceryle rudis) male flying up to favoured fishing post with tadpole in its beak, K'Far Ruppin kibbutz fishponds, Jordan Valley, Israel, March.

Roger Powell / Pied kingfisher (Ceryle rudis) male flying, K'Far Ruppin kibbutz fishponds, Jordan Valley, Israel, March.

Roger Powell / Little egret (Egretta garzetta) perched on top of a metal post, K'Far Ruppin kibbutz fishponds, Jordan Valley, Israel, March.

Roger Powell / Grey heron (Ardea cinerea) perched on top of a fishpond net, K'Far Ruppin kibbutz fishponds, Jordan Valley, Israel, March.

Roger Powell / Grey heron (Ardea cinerea) perched on top of a fishpond net, K'Far Ruppin kibbutz fishponds, Jordan Valley, Israel, March.

Roger Powell / Grey heron (Ardea cinerea) in flight, K'Far Ruppin kibbutz fishponds, Jordan Valley, Israel, March.

Roger Powell / Eurasian spoonbills (Platalea leucorodia) standing in a fishpond and preening, K'Far Ruppin kibbutz, Jordan Valley, Israel, March.

Roger Powell / Eurasian spoonbill (Platalea leucorodia) flock in flight, K'Far Ruppin kibbutz, Jordan Valley, Israel, March.

Roger Powell / White-breasted kingfisher (Halcyon smyrnensis), a predator of migratory songbirds, perched on a fishpond hawser with a lesser whitethroat (Sylvia curruca) in its beak, K'Far Ruppin kibbutz, Jorda...

Roger Powell / White-breasted kingfisher (Halcyon smyrnensis) in reedbed beside a steam after bathing, K'Far Ruppin kibbutz, Jordan Valley, Israel, March.

Roger Powell / Purple heron (Ardea purpurea) perched on top of a net over fishpond, K'Far Ruppin kibbutz fishponds, Jordan Valley, Israel.

Roger Powell / Spur-winged lapwing (Vanellus spinosus) standing on an irrigation pipe in its breeding territory, K'Far Ruppin kibbutz, Jordan Valley, Israel, March.

Roger Powell / Spur-winged lapwing (Vanellus spinosus) standing on an irrigation pipe in its breeding territory, K'Far Ruppin kibbutz, Jordan Valley, Israel, March.

Roger Powell / Pied avocets (Recurvirostra avosetta) in migratory flock, sleeping, K'Far Ruppin kibbutz fishponds, Jordan Valley, Israel, March.

Roger Powell / Lesser spotted eagle (Clanga pomarina) resting on migration in tree, K'Far Ruppin kibbutz, Jordan Valley, Israel, March.

Roger Powell / Eurasian jay (Garrulus glandarius atricapillus) perched on date palm branch with a caterpillar in its beak, K'Far Ruppin kibbutz, Jordan Valley, Israel, March.

Roger Powell / Eurasian jay (Garrulus glandarius atricapillus) perched beside its nest on a date palm, K'Far Ruppin kibbutz, Jordan Valley, Israel, March.

Roger Powell / Common snipe (Gallinago gallinago) pair, male courting female with its tail feathers displayed, K'Far Ruppin kibbutz fishpond, Jordan Valley, Israel, March.

Roger Powell / Common myna (Acridotheres tristis) perched on fence, K'Far Ruppin kibbutz, Beit She'an, Jordan Valley, Israel, March.

Roger Powell / Clamorous reed warbler (Acrocephalus stentoreus) singing in a reed bed whilst perched on a stick, K'Far Ruppin kibbutz fishponds, Jordan Valley, Israel, March.

Roger Powell / Hooded crow (Corvus corone cornix) searching for nesting material in field, K'Far Ruppin kibbutz, Jordan Valley, Israel, March.

Roger Powell / Yellow-vented bulbul (Pycnonotus goiavier) male perched on a dead bamboo stem, K'Far Ruppin kibbutz, Jordan Valley, Israel, March.

Roger Powell / Yellow-vented bulbul (Pycnonotus goiavier) pair on a dead bamboo stem, K'Far Ruppin kibbutz, Jordan Valley, Israel, March.

Roger Powell / Wood sandpiper (Tringa glareola) standing near fishpond, K'Far Ruppin kibbutz, Jordan Valley, Israel, March.

Roger Powell / Western marsh harrier (Circus aeruginosus) female perched in a tamarisk shrub, resting whilst on migration, K'Far Ruppin kibbutz, Jordan Valley, Israel, March.

Roger Powell / Western marsh harrier (Circus aeruginosus) sub-adult perched in a tree whilst resting on migration, K'Far Ruppin kibbutz, Jordan Valley, Israel.

Roger Powell / Great white pelicans (Pelecanus onocrotalus) in flock using thermals to fly north on migration, Jordan Valley, Israel, March.

Roger Powell / Great white pelican (Pelecanus onocrotalus) flock using thermals to fly north on migration, Jordan Valley, Israel, March.

Roger Powell / Great white pelican (Pelecanus onocrotalus) flying north on migration, Jordan Valley, Israel, March.

Roger Powell / Chukar (Alectoris chukar) male on guard and calling, farmland, K'Far Ruppin, Jordan Valley, Israel, March.

Roger Powell / Chukar (Alectoris chukar) male on guard, farmland, K'Far Ruppin, Jordan Valley, Israel, March.

Roger Powell / Chukar (Alectoris chukar) male and female pair feeding on the edge of farmland, K'Far Ruppin, Jordan Valley, Israel, March.

Roger Powell / Rose-ringed parakeet (Alexandrinus krameri) male perched on a branch with a nut kernel in beak, K'Far Ruppin kibbutz, Jordan Valley, Israel, March.

Roger Powell / Rose-ringed parakeet (Alexandrinus krameri) male perched on a branch with a nut kernel in beak, K'Far Ruppin kibbutz, Jordan Valley, Israel, March.

Roger Powell / Osprey (Pandion haliaetus) female landing on a fishpond gantry with a fish in its talons, K'Far Ruppin, Jordan valley, Israel, March.

Roger Powell / Osprey (Pandion haliaetus) female perched on a fishpond gantry with a fish in its talons, K'Far Ruppin, Jordan valley, Israel, March.

Roger Powell / Osprey (Pandion haliaetus) female perched on a fishpond gantry, tearing off a piece of a fish held in its talons, K'Far Ruppin, Jordan valley, Israel, March.

Roger Powell / Great white pelican (Pelecanus onocrotalus) flock preening in a kibbutz fishpond before starting to feed,whilst resting overnight on migration, K'Far Ruppin kibbutz, Jordan Valley, Israel, March.

Roger Powell / Great white pelicans (Pelecanus onocrotalus) taking off from flock in kibbutz fields, after resting on their migration north, K'Far Ruppin, Jordan Valley, Israel.

Roger Powell / Common stonechat (Saxicola torquatus) female perched on seaweed at the tideline on beach, Low Newton, Northumberland, England, UK, February.

Roger Powell / Coal tit (Periparus ater) perched on a bare willow branch, Leighton Moss RSPB Reserve, Lancashire, England, UK, January.

Roger Powell / Coal tit (Periparus ater) perched on a bare willow branch, Leighton Moss RSPB Reserve, Lancashire, England UK, January.

Roger Powell / Bait digger looking for Ragworm & Lugworms, next to a Herring Gull (Larus argentatus), Boulmer Beach, Northumberland, UK, January.

Roger Powell / Rock pipit (Anthus petrosus) hunting insects on seaweed at tideline on beach, Low Newton, Northumberland, England, UK, February.

Roger Powell / European robin (Erithacus rubecula) perched on branch, Leighton Moss RSPB Reserve, Lancashire, England, UK, January.

Roger Powell / Flock of European goldfinches (Carduelis carduelis) flying to and perching on a bare hawthorn bush, Druridge Bay, Northumberland, England, UK, January.

Roger Powell / Common stonechat (Saxicola torquatus) female perched on a bramble tendril with male displaying behind her, Low Newton, Northumberland, England, UK, February.

Jussi Murtosaari / Red-footed falcon (Falco vespertinus) juvenile flying, Finland, September.

Jussi Murtosaari / Blyth's reed warbler (Acrocephalus dumetorum) male singing whilst perched on a pine tree, Finland, June.

Jussi Murtosaari / Canada goose (Branta canadensis) hissing and spreading its wings, Finland, April.

Jussi Murtosaari / Great snipe (Gallinago media) with an earthworm in its beak, Finland, September.

Jussi Murtosaari / Whooper swan (Cygnus cygnus) female taking flight, Finland, March.

Jussi Murtosaari / Common redshank (Tringa totanus) male chasing female along rocky shore, Finland, May.

Jussi Murtosaari / Grey heron (Ardea cinerea) wading through water with reeds, Finland, April.

Jussi Murtosaari / European honey buzzard (Pernis apivorus) defacating whilst flying, Finland, August.

Lynn M. Stone / Whooper swan (Cygnus cygnus) on lake, southwest Iceland. June.

Lynn M. Stone / Two Whooper swans (Cygnus cygnus) with three cygnets on pond, Southwest Iceland. June.

Lynn M. Stone / Trumpeter swans (Cygnus buccinator) pair, side by side on pond, Homer, Alaska, USA. April.

Lynn M. Stone / Bald eagle (Haliaeetus leucocephalus) in flight, Homer, Alaska, USA. April.

Lynn M. Stone / Two Tundra swans (Cygnus columbianus) swimming in river tributary to Chesapeake Bay, a key wintering grounds for Tundra swans, Annapolis, Maryland, USA. February.

Lynn M. Stone / Redhead (Aythya americana) drake, on river, Maryland, USA. February.

Lynn M. Stone / Northern flicker (Colaptes auratus luteus), yellow-colour form, perched on branch in snow, Milford, Connecticut, USA. January.

Lynn M. Stone / Mourning dove (Zenaida macroura) perched on branch in snow, Milford, Connecticut, USA. January.

Lynn M. Stone / American robin (Turdus migratorius) perched on branch in snow storm, Milford, Connecticut, USA. January.

Lynn M. Stone / Northern cardinal (Cardinalis cardinalis) male, perched on branch during snow storm, Milford, Connecticut, USA. January.

Lynn M. Stone / Northern cardinal (Cardinalis cardinalis) male, perched on branch during snow storm, Milford, Connecticut, USA. January.

Lynn M. Stone / American brant (Branta bernicla hrota) on water, Long Island Sound, Connecticut, USA. January.

Lynn M. Stone / Blue jay (Cyanocitta cristata) perched on branch in snow, Milford, Connecticut, USA. January.

Lynn M. Stone / Roseate spoonbill (Platalea ajaja) foraging in freshwater swamp at sunset, Myakka River State Park, Florida, USA. December.

Lynn M. Stone / Limpkin (Aramus guarauna) with freshwater mussel in beak, wading in shallow water, Myakka River State Park, Florida, USA. December.

Lynn M. Stone / Ring-necked duck (Aythya collaris) drake, on freshwater lake, Lakeland, Florida, USA. December.

Lynn M. Stone / Florida sandhill cranes (Grus canadensis pratensis) pair with chick, foraging in wet prairie grassland, Sarasota, Florida, USA. April.

Lynn M. Stone / Florida sandhill cranes (Grus canadensis pratensis) pair with chick, foraging in wet prairie grassland, Sarasota, Florida, USA. April.

Lynn M. Stone / Florida sandhill crane (Grus canadensis pratensis) calling on wet prairie, Sarasota, Florida, USA. April.

Lynn M. Stone / Limpkin (Aramus guarauna) with freshwater mussel in beak, wading in shallow lake edge, Myakka River State Park, Sarasota, Florida, USA. April.