The white-backed woodpeckers are the largest of the spotted, black-and-white woodpeckers.
It is reliant on deciduous woodland with lots of old, decaying trees that are home to plenty of insects. White-backed woodpeckers havea very particular diet: the larvae of wooddwelling
insects. Each year they hack out a new nesting hole, often high in a rotting aspen,
alder or birch.
The white-backed woodpecker marks its territory by drumming, for example
on dead branches. Different species of woodpecker have different signals, and they
can be heard over a long distance. In recent years there have been at most a few breeding pairs in the country.