Loic Poidevin / Eurasian bullfinch (Pyrrhula pyrrhula) male on a branch feeding on Rowan (Sorbus aucuparia) berries, Leon, Spain, February.

Loic Poidevin / Eurasian bullfinch (Pyrrhula pyrrhula) male on a branch feeding on Rowan (Sorbus aucuparia) berries, Leon, Spain, February.

Mathias Schaef/ BIA / Eurasian Bullfinch (Pyrrhula pyrrhula) male, Finnmark, Norway

Markus Varesvuo / Female Bullfinch (Pyrrhula pyrrhula) perched on very top of frost covered pine tree, Kuusamo, Finland, January

Markus Varesvuo / Male Bullfinch (Pyrrhula pyrrhula) perched on frost covered branches, Kuusamo, Finland, January

Markus Varesvuo / Bullfinch (Pyrrhula pyrrhula) male perched on frosty twigs, Kuusamo, Finland, January.

Markus Varesvuo / Bullfinch (Pyrrhula pyrhula) male perched amongst frozen branches, Kuusamo, Finland

Markus Varesvuo / Bullfinch (Pyrrhula pyrrhula) male portrait, Kuusamo, Finland, March

Markus Varesvuo / Bullfinch (Pyrhula pyrhula) on frozen branches. Kuusamo, Finland, January

Bence Mate / Eurasian bullfinch (Pyrrhula pyrrhula) drinking, reflected in water, Pusztaszer, Hungary, February.

Markus Varesvuo / Male Bullfinch (Pyrrhula pyrrhula) feeding on berries, Uto, Finland, October

Fergus Gill / Bullfinch (Pyrrhula pyrrhula) male feeding on berries in a frozen rowan tree in winter. Perthshire, Scotland, December