HAWKWATCH
IBO has conducted counts of migrating raptors during fall in the Boise Foothills since 1994. We use standardized observation procedures which provides reliable population trend information on western raptor species. Data collected using methods standardized by HawkWatch International Inc. and the Hawk Migration Association of North America enables the easy integration with counts from other sites for analyses of regional and continental population trends.
IBO counts 5000-9000 raptors of 18 different species annually with substantial inter-annual variation for many species. Counts run from August 25- October 31. Daily counts generally begin at 10am and continue throughout the day until raptor flights cease, usually between 6-8pm.
IBO has conducted counts of migrating raptors during fall in the Boise Foothills since 1994. We use standardized observation procedures which provides reliable population trend information on western raptor species. Data collected using methods standardized by HawkWatch International Inc. and the Hawk Migration Association of North America enables the easy integration with counts from other sites for analyses of regional and continental population trends.
IBO counts 5000-9000 raptors of 18 different species annually with substantial inter-annual variation for many species. Counts run from August 25- October 31. Daily counts generally begin at 10am and continue throughout the day until raptor flights cease, usually between 6-8pm.
