Bird Abundance and Cavity Use 25 Years After Timber Stand Improvement
Relative abundance of birds and cavity use by vertebrates were determined on 2 20-ha sites in a mature, second-growth Appalachian forest. One site received timber stand improvement (TSI) by tree girdling 25 years prior to measurement, and the other site did not receive TSI. Although snag density, animal-created cavity density, tree density, and tree basal area were higher on the TSI site than on the control, there were few differences in the relative abundance of birds between sites. Whitebreasted nuthatches (Sitta carolinensis) and wood thrushes (Hylocichla mustelina) were more abundant...
