Jussi Murtosaari / Grey-headed woodpecker (Picus canus) female on lichen covered tree trunk. Jamsa, Central Finland. January.

Danny Green / Grey headed woodpecker (Picus canus) in snow, Finland. February.

Markus Varesvuo / Black Woodpecker male (Dryocopus martius) and female Grey-headed Woodpecker (Picus canus) Finland, February.

Markus Varesvuo / Siberian Tit (Parus cinctus) and Grey-heades woodpecker (Picus canus), Kuusamo, Finland, January.

Andres M. Dominguez / Grey-headed woodpecker (Picus canus) feeding at holes in Populus sp tree , Danube Delta, Romania. July.

Andres M. Dominguez / Grey-headed woodpecker (Picus canus) feeding at holes in Populus sp tree , Danube Delta, Romania. July.

Hermann Brehm / Grey-headed Woodpecker(Picus canus) male on tree trunk, Germany. January

Hermann Brehm / Great spotted woodpecker (Dendrocopos major) and Grey headed woodpecker (Picus canus) on tree trunk, Germany. December

Staffan Widstrand / Grey-headed woodpecker (Picus canus) on lichen and snow covered tree trunk. Kalvtrask, Vasterbotten, Lapland, Sweden. January.

Staffan Widstrand / Grey-headed woodpecker (Picus canus) on tree trunk in falling snow. Kalvtrask, Vasterbotten, Lapland, Sweden. January.

Staffan Widstrand / Grey-headed woodpecker (Picus canus) on tree trunk. Kalvtrask, Vasterbotten, Lapland, Sweden. January.

David Tipling / Grey-headed woodpecker (Picus canus) female Hortobagy National Park, Hungary January