Both sexes incubate the eggs, with males generally taking the night shift.
The specially adapted skulls of woodpeckers allow them to pound hard on tree trunks to excavate nesting and roosting cavities, to find food, and to communicate and attract mates. They also occur in parts of the Pacific Northwest and California and into Canada where they are found from the eastern portion of Canada to the western provinces. They are found throughout the United States and Canada and into Mexico. Sometimes insects get stuck in the sweet sap and are eaten too. Click here for more about the value of dead trees.