White-backed woodpeckers are one of Europe’s rarest species of woodpeckers. They can be found in a region extending from western Europe to western Russia and as far south as Greece. The densest populations of Dendrocopos leucotos are found in the coastal forests of western Norway.

White-backed woodpeckers are important indicators of healthy, mature deciduous woodlands in Eurasia.

https://animaldiversity.org/accounts/Dendrocopos_leucotos/