Characteristics of Blackburnian Warbler, 'Dendroica fusca', Breeding Habitat inUpper Michigan

摘要

Breeding habitat of the Blackburnian Warbler (Dendroica fusca) in the centralUpper Peninsula of Michigan was investigated by locating singing males along random transects, and evaluating several habitat parameters at occupied sites. Blackburnian Warblers occupied natural, older age (60-167 years old), pole (12.5-24.9 cm. diameter breast height, dbh) and sawlog (25.0 + cm, dbh) size-class