Hermann Brehm / Blackcap (Sylviya atricapilla) male perched in blossom, Hungary, April.

Jussi Murtosaari / Blackcap (Sylvia atricapilla) female and two males huddling together for warmth while sleeping, Finland, May.

Bence Mate / Eurasian blackcaps (Sylvia atricapilla) caught on limed stick, Cyprus. Finalist in The Wildlife Photojournalist Award: Single Image Category of the Wildlife Photographer of the Year Awards (WPOY) Com...

Markus Varesvuo / Blackcap (Sylvia atricapilla) feeding on berries, Uto, Finland, October.

Markus Varesvuo / Blackcap (Sylvia atricapilla) Uto Finland May

Andy Sands / Dormouse (Muscardinus avellanarius) asleep in old Blackcap nest. Captive. UK, September.

Alan Williams / Female blackcap (Sylvia atricapilla) perched in garden shrub, Cheshire, UK, December

Alan Williams / Male Blackcap (Sylvia atricapilla) singing in woodland, Essex, UK, April

Rolf Nussbaumer / Blackcap, female on elderflower {Sylvia atricapilla} Switzerland

Rolf Nussbaumer / Blackcap, male on elderflower {Sylvia atricapilla} Switzerland

Jose B. Ruiz / Blackcap male perched on a branch, Spain

Loic Poidevin / Eurasian blackcap (Sylvia atricapilla) perched on Rowan (Sorbus aucuparia) Leon, Spain, February