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.

Will Watson / Male Hairy-footed Flower Bee (Anthophora plumipes) in flight vsiting Creeping Comfrey (Symphytum grandiflorum), garden, Herefordshire, England.

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...

Staffan Widstrand / White-backed woodpecker (Dendrocopos leucotos), male on tree trunk in snow, Stora Tuvan Nature Reserve, Vasterbotten, Sweden

Staffan Widstrand / Grey-headed woodpecker male, (Picus canus) on tree trunk in snow, Stora Tuvan Nature Reserve, Vasterbotten, Sweden

Staffan Widstrand / White-backed woodpecker (Dendrocopos leucotos) male on tree trunk in snow, Stora Tuvan Nature Reserve, Vasterbotten, Sweden

Staffan Widstrand / White-backed woodpecker (Dendrocopos leucotos) female on tree trunk in snow, Stora Tuvan Nature Reserve, Vasterbotten, Sweden

Staffan Widstrand / White-backed woodpecker (Dendrocopos leucotos) female on tree trunk in snow, Stora Tuvan Nature Reserve, Vasterbotten, Sweden

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.)

Staffan Widstrand / Golden eagle (Aquila chrysaetos) perched in tree in snow, Vitbergets Nature Reserve, Vasterbotten, Sweden

Staffan Widstrand / Eurasian goshawk (Accipiter gentilis) juvenile in snow, Vitbergets Nature Reserve, Vasterbotten, Sweden