Markus Varesvuo / Arctic tern (Sterna paradisaea) mobbing Grass snake (Natrix natrix) on rocks below. Uto, Western Finland. June.

Markus Varesvuo / Tufted duck (Aythya fuligula) flock on sea. Uto, Paragas, Finland. March.

Markus Varesvuo / Tufted duck (Aythya fuligula) flock in coastal waters. Uto, Paragas, Finland. March.

Markus Varesvuo / Shore Lark (Eremophila alpestris) standing on snow covered rock, another in background. Uto, Paragas, Finland. February.

Markus Varesvuo / Red-throated diver (Gavia stellata) in winter plumage, on water. Uto, Paragas, Finland. November.

Markus Varesvuo / Red-throated diver (Gavia stellata) in winter plumage, on water. Uto, Paragas, Finland. November.

Markus Varesvuo / Purple sandpiper (Calidris maritima) on rocks. Uto, Paragas, Finland. January.

Jussi Murtosaari / Brent Goose (Branta bernicla), swimming, Finland, October.

Jussi Murtosaari / Redshank (Tringa totanus), pair mating, Finland, May.

Jussi Murtosaari / Lesser whitethroat (Sylvia curruca) covered in yellow pollen, Finland, May.

Jussi Murtosaari / Lesser whitethroat (Sylvia curruca) covered in yellow pollen, Finland, May.

Jussi Murtosaari / Arctic tern (Sterna paradisaea) adult taking off from post, Finland, May.

Jussi Murtosaari / Arctic tern (Sterna paradisaea), on post, Finland, May.

Jussi Murtosaari / Nottingham catchfly (Silene nutans), in flower, Finland, October.

Jussi Murtosaari / Coal tit (Parus ater), hanging upside down, Finland, September.

Jussi Murtosaari / Eurasian blue tit (Cyanistes caeruleus), in rose bush with rose hip, Finland, October.

Jussi Murtosaari / Purple sandpiper (Calidris maritima), adult in spring, Finland, May.

Jussi Murtosaari / Purple sandpiper (Calidris maritima), Finland, May.