Mike Read / Eurasian wigeon (Anas penelope) female, feeding in mud at edge of a pool, Catcott Lows Nature Reserve, Somerset, England, UK. March.

Mike Read / Cetti's warbler (Cettia cetti) standing in grass, Ham Wall RSPB Reserve, Somerset, England, UK. March.

Mike Read / Ring-necked pheasant (Phasianus colchicus) male, head portrait, Cranborne Chase, Dorset, England, UK. February.

Mike Read / Northern goshawk (Accipiter gentilis) male, perched on branch with dead Grey squirrel (Sciurus carolinensis) prey, New Forest National Park, Hampshire, England, UK. February.

Mike Read / Northern goshawk (Accipiter gentilis) male, perched on branch mantling prey, New Forest National Park, Hampshire, England, UK. February.

Mike Read / Barnacle geese (Branta leucopsis) flock, in flight, Islay, Inner Hebrides, Scotland, UK. December.

Mike Read / Three Red-billed choughs (Pyrrhocorax pyrrhocorax) drinking from puddle, Islay, Inner Hebrides, Scotland, UK. December.

Mike Read / Red-billed chough (Pyrrhocorax pyrrhocorax) drinking from puddle, Islay, Inner Hebrides, Scotland, UK. December.

Mike Read / Sedge warbler (Acrocephalus schoenobaenus) perched amongst scrub and gorse, singing, Isle of Lewis, Outer Hebrides, Scotland, UK. May.

Mike Read / Common snipe (Gallinago gallinago) feeding amongst marsh vegetation, Loch Stiapabhat RSPB Reserve, Isle of Lewis, Outer Hebrides, Scotland, UK. May.

Mike Read / Common redstart (Phoenicurus phoenicurus) male, perched on branch with with food for chicks in beak, New Forest National Park, Hampshire, England, UK. May.

Mike Read / European nightjar (Caprimulgus europaeus) day roosting in tree, New Forest National Park, Hampshire, England, UK. June.

Mike Read / Northern fulmar (Fulmarus glacialis) pair, mutual preening on cliff ledge, at breeding cliffs, Isle of Lewis, Outer Hebrides, Scotland, UK. May.

Mike Read / Common eider (Somateria mollissima) male, on water, Loch Fleet National Nature Reserve, Sutherland, Scotland, UK. May.

Mike Read / Eurasian bullfinch (Pyrrhula pyrrhula) male, perched on bird feeder in a garden, New Forest National Park, Hampshire, England, UK. June.

Mike Read / Lesser spotted woodpecker (Dendrocopos minor) female, approaching nest hole in Alder (Alnus glutinosa) tree, with food for chicks, New Forest National Park, Hampshire, England, UK. June.

Mike Read / Lesser spotted woodpecker (Dendrocopos minor) female, at entrance to nest hole in Alder (Alnus glutinosa) tree, with food for chicks, New Forest National Park, Hampshire, England, UK. June.

Mike Read / Lesser spotted woodpecker (Dendrocopos minor) male, at entrance to nest hole in a fungi covered dead tree, with food for chicks, New Forest National Park, Hampshire, England, UK. June.

Mike Read / Lesser spotted woodpecker (Dendrocopos minor) female, perched near nest hole in a fungi covered dead tree, with food for chicks, New Forest National Park, Hampshire, England, UK. June.

Mike Read / Lesser spotted woodpecker (Dendrocopos minor) male, taking flight from nest hole, New Forest National Park, Hampshire, England, UK. June.

Mike Read / Long-tailed tit (Aegithalos caudatus) perched on a lichen covered twig in woodland, near Bransgore, Hampshire, England, UK. February.

Mike Read / Grey phalarope (Phalaropus fulicarius) on the water in Fishtail Pond, Lymington and Keyhaven Nature Reserve, Hampshire, England, UK. February.

Mike Read / Brent goose (Branta bernicla) feeding on vegetation in lake, Mount Lake, Keyhaven Marshes, Hampshire, England, UK. December.

Roger Powell / Grey plover (Pluvialis squatarola) standing on tidal mud. Lindisfarne Nature Reserve, Northumberland, UK. January.

Roger Powell / Eurasian curlew (Numenius arquata) catching Lugworm (Arenicola marina). Lindisfarne National Nature Reserve, Northumberland, UK. January.

Roger Powell / Eurasian curlew (Numenius arquata) probing seaweed for food. Lindisfarne National Nature Reserve, Northumberland, UK. November.

Roger Powell / Eurasian curlew (Numenius arquata) probing seaweed for food. Lindisfarne National Nature Reserve, Northumberland, UK. November.

Roger Powell / Eurasian curlew (Numenius arquata) walking across sand looking for food. Lindisfarne National Nature Reserve, Northumberland, UK. November.

Roger Powell / Eurasian curlew (Numenius arquata) walking across sand looking for food. Lindisfarne National Nature Reserve, Northumberland, UK. November.

Roger Powell / Eurasian curlew (Numenius arquata) catching small crab. Lindisfarne National Nature Reserve, Northumberland, UK. November.

Roger Powell / Eurasian curlew (Numenius arquata) probing mud for food. Lindisfarne National Nature Reserve, Northumberland, UK. November.

Roger Powell / Eurasian curlew (Numenius arquata) probing mud for food. Lindisfarne National Nature Reserve, Northumberland, UK. November.

Roger Powell / Common redshank (Tringa totanus) walking in low winter sunshine, to new feeding spot on shoreline. Lindisfarne National Nature Reserve, Northumberland, UK. January.

Roger Powell / Common redshank (Tringa totanus) resting at shoreline, on seaweed covered rock. Lindisfarne National Nature Reserve, Northumberland, UK. March.

Roger Powell / Common redshank (Tringa totanus) resting at shoreline, with feathers blowing backwards in wind. Lindisfarne National Nature Reserve, Northumberland, UK. March.

Roger Powell / Two Common redshanks (Tringa totanus) probing mud for food collectively at shoreline. Lindisfarne National Nature Reserve, Northumberland, UK. November.

Roger Powell / Group of Common redshanks (Tringa totanus) probing mud for food collectively at shoreline. Lindisfarne National Nature Reserve, Northumberland, UK. November.

Roger Powell / Sanderling (Calidris alba) walking across coastal sand. Boulmer Beach, Northumberland, UK. January.

Roger Powell / Ruddy turnstone (Arenaria interpres), male, searching for food in pile of seaweed. Low Newton beach, Northumberland, UK. March.

Roger Powell / Ruddy turnstone (Arenaria interpres), male, searching for food in pile of seaweed. Low Newton beach, Northumberland, UK. March.

Roger Powell / Two Red knots (Calidris canutus), in winter plumage, searching for food in tidal pool. Lindisfarne National Nature Reserve, Northumberland, UK. January.

Roger Powell / Red knot (Calidris canutus), in winter plumage, consuming food from tidal pool. Lindisfarne National Nature Reserve, Northumberland, UK. January.

Roger Powell / Red knot (Calidris canutus), in winter plumage, searching for food in tidal pool. Lindisfarne National Nature Reserve, Northumberland, UK. January.

Roger Powell / Northern lapwing (Vanellus vanellus) on breeding pasture. Druridge Pools Nature Reserve, Northumberland, UK. May.

Roger Powell / Northern lapwing (Vanellus vanellus) on breeding pasture. Druridge Pools Nature Reserve, Northumberland, UK. May.

TJ Rich / Pink footed geese (Anser brachyrhynchus) coming into roost at wetlands, WWT Slimbridge, Gloucestershire, England, UK. January.

TJ Rich / Mute swan (Cygnus olor) on water in an aggressive posture, WWT Slimbridge, Gloucestershire, England, UK. January.

TJ Rich / Bewick's swan (Cygnus columbianus bewickii) preening, WWT Slimbridge, Gloucestershire, England, UK. January.

TJ Rich / Mute swan (Cygnus olor) in flight, WWT Slimbridge, Gloucestershire, England, UK. January.

TJ Rich / Mute swan (Cygnus olor) displaying, WWT Slimbridge, Gloucestershire, England, UK. January.

TJ Rich / Puffin (Fratercula arctica) standing at burrow entrance along a footpath during breeding season, with people walking close by, Skomer Island, Pembrokeshire, Wales, UK. June.

Juan Carlos Munoz / Nothern gannet (Morus bassanus) colony roosting at sunset, Saltee Islands, County Wexford, Republic of Ireland. June.

Erlend Haarberg / Northern fulmar (Fulmarus glacialis) gliding low over the water surface, Svalbard, Norway, Arctic Ocean.

Erlend Haarberg / Two Spotted redshanks (Tringa erythropus), rival males, fighting on snow, Finnmark, Norway. May.

Shane Gross / Bald eagle (Haliaeetus leucocephalus) eating salmon on rocky shore, Prince William Sound, Alaska, USA. June.

Joel Sartore / Photo Ark / Spoon-billed sandpiper (Calidris pygmaea) profile, walking into frame and eating crickets on the ground before exiting frame, captive rearing project, Wildfowl and Wetlands Trust (WWT) Slimbridge, Gl...

Joel Sartore / Photo Ark / Spoon-billed sandpiper (Calidris pygmaea) profile, eating crickets on the ground and walking around before exiting frame, captive rearing project, Wildfowl and Wetlands Trust Slimbridge, Gloucestershi...

Michael Hutchinson / Robin (Erithacus rubecula) entering and leaving bird bath to bathe, Bristol, UK, January.

Michael Hutchinson / House Sparrow (Passer domesticus) mixed group bathing in birdbath before all leaving frame, Bristol, UK, January.

Michael Hutchinson / Blackcap (Silvia atricapilla) male drinking from a bird bath, Bristol, UK, January.

Michael Hutchinson / Blackcap (Silvia atricapilla) male drinking nectar from Mahonia (Mahonia sp.) flowers and leaving frame, Bristol, UK, January.

Michael Hutchinson / Blackcap (Silvia atricapilla) male drinking nectar from Mahonia (Mahonia sp.) flowers, Bristol, UK, January.

Michael Hutchinson / Blackcap (Silvia atricapilla) male drinking nectar from Mahonia (Mahonia sp.) flowers, Bristol, UK, January.

Michael Hutchinson / Blackcap (Silvia atricapilla) male drinking nectar from Mahonia flowers, Bristol, UK, January.

Michael Hutchinson / House sparrow (Passer domesticus) female feeding on fat balls in a bird feeder, Bristol, UK, January.

Michael Hutchinson / House sparrow (Passer domesticus) small group of females feeding on fat balls in a bird feeder, Bristol UK, January.

Michael Hutchinson / Blackcap (Silvia atricapilla) feeding on fat balls in a bird feeder, Bristol, UK, January.

Michael Hutchinson / Blackcap (Silvia atricapilla) feeding on fat balls in a bird feeder and pull focus to a Blue tit (Cyanistes caeruleus) that enters frame to feed, Bristol, UK, January.

Michael Hutchinson / House sparrow (Passer domesticus) male cleaning its bill on a branch before leaving frame Bristol, UK, January.

Michael Hutchinson / House sparrow (Passer domesticus) male feeding on fat balls in a bird feeder before female enters frame to feed, Bristol UK, January.

Michael Hutchinson / House sparrow (Passer domesticus) male feeding on fat balls in a bird feeder, Bristol UK, January.

Michael Hutchinson / House sparrow (Passer domesticus) male feeding on fat balls in a bird feeder, Bristol, UK, January.

Michael Hutchinson / House sparrow (Passer domesticus) male feeding on fat balls in a bird feeder before leaving frame, Bristol, UK, January.

Michael Hutchinson / Blackcap (Silvia atricapilla) bathing in a birdbath, Bristol, UK, January.

Terry Whittaker / Goosander (Mergus merganser), female, on nest box under railway arches, Reddish Vale Country Park, Greater Manchester, UK. April.

Terry Whittaker / Goosander (Mergus merganser), female, in flight. River Tame, Greater Manchester, UK. April.

Terry Whittaker / Goosander (Mergus merganser), female, landing on nest box under railway arches. Reddish Vale Country Park, Greater Manchester, UK. April.

Terry Whittaker / Black guillemot (Cepphus grylle) perched on boat motor, Portpatrick, Dumfries and Galloway, Scotland. July.

Terry Whittaker / Goosander (Mergus merganser),female, flying up to nest box. Reddish Vale Country Park, Greater Manchester, UK. April.

Terry Whittaker / Goosander (Mergus merganser), male, flying over River Tame, Greater Manchester, UK. March.

Terry Whittaker / Oystercatcher (Haematopus ostralegus) chick, Portpatrick harbour, Dumfries and Galloway, Scotland. June.

Terry Whittaker / Oystercatcher (Haematopus ostralegus) calling, Portpatrick harbour, Dumfries and Galloway, Scotland. June.

Terry Whittaker / Oystercatcher (Haematopus ostralegus) perched on lichen-covered rock, Portpatrick harbour, Dumfries and Galloway, Scotland. June.

Terry Whittaker / Oystercatcher (Haematopus ostralegus) parent and chick, Portpatrick harbour, Dumfries and Galloway, Scotland. June.

Terry Whittaker / Black guillemot (Cepphus grylle) in flight in Portpatrick harbour, Dumfries and Galloway, Scotland. June.

Terry Whittaker / Black guillemot (Cepphus grylle) resting on harbour wall, Portpatrick, Dumfries and Galloway, Scotland. June.

Terry Whittaker / Oystercatcher (Haematopus ostralegus) in flight in Portpatrick harbour, Dumfries and Galloway, Scotland. June.

Terry Whittaker / Four Black guillemots (Cepphus grylle) resting and preening in Portpatrick harbour, Dumfries and Galloway, Scotland. July.

Terry Whittaker / Starling (Sturnus vulgaris) perched on sailing string, Portpatrick harbour, Dumfries and Galloway, Scotland. June.

Terry Whittaker / Oystercatcher (Haematopus ostralegus) parent and chick, Portpatrick harbour, Dumfries and Galloway, Scotland. June.

Terry Whittaker / Black guillemot (Cepphus grylle) holding fish in beak, flying back to nest, Portpatrick, Dumfries and Galloway, Scotland. July.

Terry Whittaker / Black guillemot (Cepphus grylle) holding fish in beak, flying back to nest, Portpatrick, Dumfries and Galloway, Scotland. July.

Terry Whittaker / Pair of Black guillemots (Cepphus grylle) nesting in harbour wall, Portpatrick, Dumfries and Galloway, Scotland. July.

Terry Whittaker / Black guillemot (Cepphus grylle) holding fish in beak, flying back to nest, Portpatrick, Dumfries and Galloway, Scotland. June.

Terry Whittaker / Black guillemot - Black guillemot (Cepphus grylle) holding fish in beak, flying back to nest, Portpatrick, Dumfries and Galloway, Scotland. July.

Terry Whittaker / Black guillemot (Cepphus grylle) resting on harbour wall, Portpatrick, Dumfries and Galloway, Scotland. June.