FACTORS AFFECTING THE SIZE OF FERRUGINOUS HAWK HOME RANGES

摘要

We used radio-telemetry to track movements of seven adult male Ferruginous Hawks (Buteo regalis) in southcentral Washington. Home range size was estimated for each male using minimum convex polygon, harmonic mean, adaptive kernel, and fixed kernel-based methods. Minimum convex polygon and harmonic mean home ranges were significantly larger than those previously reported for Ferruginous Hawks. Home ranges varied substantially among males (mean =90.3 km~2, range =17.7-136.4 km~2).