Abstract
Nonbreedig bird communities were censused on burned and unburned study plots in ponderosa pine (P. ponderosa) habitat of Prescott National Forest, Yavapai County, Arizona [USA]. Logging had occurred on 2 burned and 2 unburned plots. Forty-nine species of birds were recorded during fall, winter and spring. Twenty-eight species were recorded on burned, and 38 spp. on unburned plots. During all seasons, more species were restricted to unburned study plots; more species on unburned sites occurred on only 1 site. Species composition on different areas was related to foraging substrate availability and to season. Habitat alterations caused by fire and by logging appeared to have a similar influence on many components of avian communities. Patterns observed during nonbreeding seasons paralleled, in many instances, response of breeding season communities to similar habitat changes.