Nick Upton / Greylag goose (Anser anser) stepping through ice whilst emerging from a partly frozen marshland pool, Gloucestershire, England, UK, January.
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Nick Upton / Grey seal (Halichoerus grypus) lying on a beach and rolling over in the waves, Norfolk, England, UK, January.
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Nick Upton / Lapwings (Vanellus vanellus) and Golden plover (Pluvialis apricaria) in flight and landing to join large flocks of Wigeon (Anas penelope) swimming on partially flooded pastureland, Gloucestershire, En...
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Nick Upton / A group of Canada geese (Branta canadensis) swimming on flooded pasture past Pochard (Aythya ferina), resting Shelduck (Tadorna tadorna), Shoveler (Anas clypeata) and Lapwings (Vanellus vanellus), Glo...
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Nick Upton / Canada geese (Branta canadensis) preening and bathing by somersaulting on the surface of a lake, slow-motion clip, Gloucestershire, England, UK, January.
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Nick Upton / Bewick's swan (Cygnus columbianus bewickii) standing on flooded pastureland, surrounded by grazing Wigeon (Anas Penelope) and Lapwings (Vanellus vanellus), Gloucestershire, England, UK, February.
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Andy Jackson / 2020VISION / Hen Arctic charr (Salvelinus alpinus) being striped of eggs by an Environment Agency Officer before being marked with dye, part of a breeding programme, River Lisa, Ennerdale, Lake District National P...
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Staffan Widstrand / White-backed woodpecker (Dendrocopos leucotos), male on tree trunk in snow, Stora Tuvan Nature Reserve, Vasterbotten, Sweden
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Staffan Widstrand / Grey-headed woodpecker male, (Picus canus) on tree trunk in snow, Stora Tuvan Nature Reserve, Vasterbotten, Sweden
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Staffan Widstrand / White-backed woodpecker (Dendrocopos leucotos) male on tree trunk in snow, Stora Tuvan Nature Reserve, Vasterbotten, Sweden
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Staffan Widstrand / White-backed woodpecker (Dendrocopos leucotos) female on tree trunk in snow, Stora Tuvan Nature Reserve, Vasterbotten, Sweden
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Staffan Widstrand / White-backed woodpecker (Dendrocopos leucotos) female on tree trunk in snow, Stora Tuvan Nature Reserve, Vasterbotten, Sweden
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Staffan Widstrand / RF - Golden eagle (Aquila chrysaetos) perched in tree in snow, Vitbergets Nature Reserve, Vasterbotten, Sweden (This image may be licensed either as rights managed or royalty free.)
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Staffan Widstrand / Golden eagle (Aquila chrysaetos) perched in tree in snow, Vitbergets Nature Reserve, Vasterbotten, Sweden
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Staffan Widstrand / Eurasian goshawk (Accipiter gentilis) juvenile in snow, Vitbergets Nature Reserve, Vasterbotten, Sweden
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Staffan Widstrand / Eurasian goshawk (Accipiter gentilis) juvenile in snow, Vitbergets Nature Reserve, Vasterbotten, Sweden
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Staffan Widstrand / RF - Eurasian goshawk (Accipiter gentilis) juvenile in snow, Vitbergets Nature Reserve, Vasterbotten, Sweden (This image may be licensed either as rights managed or royalty free.)
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Staffan Widstrand / Eurasian blue tit (Cyanistes caeruleus) Vitbergets Nature Reserve, Vasterbotten, Sweden
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Staffan Widstrand / RF - Two Raven (Corvus corax) perched in tree, Vitbergets Nature Reserve, Vasterbotten, Sweden (This image may be licensed either as rights managed or royalty free.)
Staffan Widstrand / Raven on snow (Corvus corax), Vitbergets Nature Reserve, Vasterbotten, Sweden
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Staffan Widstrand / RF - Raven (Corvus corax) landing Vitbergets Nature Reserve, Vasterbotten, Sweden (This image may be licensed either as rights managed or royalty free.)