Birds can nest in snags as small as four inches in diameter. LOGS Loose bark used as hiding places for small animals and storage areas for squirrels and deer mice. Trunk provides food source for woodpeckers. Upright limbs and branches are used as perches. Log retains moisture as it decays providing damp areas for amphibians.
Hollow logs give raccoons and opossums places to den.
Building a brushpile is easy. Gather up some logs three to five inches in diameter, about four feet long and stack them perpendicular to each other in layers of four or five logs. The stack should be three to five layers tall. Once the frame is constructed, cover the stack with smaller limbs and branches until you have a pile three or four feet tall. A well constructed brushpile is much more valuable than a haphazard collection of yard debris.