Multivariate analysis of Buteo nest site selection in Washington
Technical Report
·
OSTI ID:5390535
Raptor breeding populations of grasslands and semi-arid grasslands of western North America include varying densities of three Buteo species, the Red-tailed Hawk (Buteo jamaicensis), Ferruginous Hawk (Buteo regalis) and Swainson's Hawk (Buteo swainsoni). These three species are behaviorially rather similar in their diurnal activity patterns and foraging habitats and exhibit similar diets comprised of small mammals and birds. Principal component analysis and discriminant function analysis were used to describe key similarities and differences in nest site selection of the three Buteo species. Differences in nest site selection may offer an explanation of how the three Buteo species may nest sympatrically and at times successfully at distances of less than 0.5 km despite apparent similarities in use of other resources. 15 refs., 1 fig., 9 tabs.
- Research Organization:
- Pacific Northwest Lab., Richland, WA (USA)
- DOE Contract Number:
- AC06-76RL01830
- OSTI ID:
- 5390535
- Report Number(s):
- PNL-SA-11283; ON: DE86015534
- Country of Publication:
- United States
- Language:
- English
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