Markus Varesvuo / Black woodpecker (Dryocopus martius) male perched on tree trunk, trees covered in hoar frost. Kuusamo, Northern Ostrobothnia, Finland. February. Commended in the Birds in the Environment Category of t...

Sven Zacek / Black woodpecker (Dryocopus martius) excavating nest hole. Valgamaa, Southern Estonia. April.

Kerstin Hinze / Male Black woodpecker (Dryocopus martius) drilling a hole in a tree, hunting for insects, Bavarian Forest National Park, Bavaria, Germany, February.

Sven Zacek / Black woodpecker (Dryocopus martius) feeding chicks at nest in tree trunk viewed from above, Valga County, Estonia. May. Highly commended in the GDT European Wildlife Photographer of the Year Awards 2...

Hermann Brehm / Black Woodpecker (Dryocopus martius) male and female, at the nesthole, Germany. December

Hermann Brehm / Black Woodpecker (Dryocopus martius) male, calling, Germany. February

Hermann Brehm / Black Woodpecker (Dryocopus martius) male, Germany. November

Markus Varesvuo / Black woodpecker (Dryocopus martius) perched on tree stump, looking over shoulder. Helsinki, Finland. February.

Markus Varesvuo / Black woodpecker (Dryocopus martius) male perched on tree trunk, trees covered in hoar frost. Kuusamo, Northern Ostrobothnia, Finland. February.

Markus Varesvuo / Hawk owl (Surnia ulula) and Black woodpecker (Dryocopus martius) perched in tree. Helsinki, Finland. December. Small repro only.

Sven Zacek / Black woodpecker (Dryocopus martius) male excavating nest hole in Aspen (Populus tremula) trunk. Tartumaa, Southern Estonia. April. Composite image.

Sven Zacek / Black woodpecker (Dryocopus martius) female greeting mate during nest hole excavation in Aspen (Populus tremula) tree. Tartumaa, Southern Estonia. May.