Why do woodpeckers peck at trees?
according to http://www.alaweb.com/~kenwood/saba/bird… “Why Do Woodpeckers Peck? Three Reasons: 1. They are trying to establish territories and attract mates. This predominantly springtime behavior, called drumming, generally is done in rapid succession on resonant dead tree trunks or limbs. However, buildings and utility poles, when available, are often alternatives. Drumming may occur a number of times during a single day, and may last for some days or weeks. 2. They are looking for food. Woodpeckers naturally search vertical surfaces of tree trunks and branches for wood boring beetles, carpenter ants, and other insects. The pecking style used for feeding is much different from drumming. Only a few pecks are made and then the resulting hole is explored with the bird’s bill and tongue. This behavior will continue until an insect is found or the bird is satisfied that one is not there. Then the wo
