HOME RANGE CHARACTERISTICS OF MALE COOPER'S HAWKS IN AN URBAN ENVIRONMENT

摘要

We monitored the movements of nine radio-tegged, adult, male Cooper's Hawks (Accipiter cooperii) in adjacent home ranges during the breeding seasons of 1996 or 1997 in Tucson, Arizona, to ascertain the sizes and degree of overlap of home ranges, and to assess habitat selection at two spatial scales. Size of home ranges differed among hawks (13.3-130.6 ha), but the average was small [65.5 ha ± 40.7 (SD)] compared to the size of home ranges reported for Cooper's Hawks in the literature. Home range size generally decreased with the number of years that a hawk had lived on its breeding territory.