Searches for raptor monitoring sites during autumn migration in southwestern and southcentral Idaho in 1996

Publication Type:

Report

Source:

Idaho State Office BLM (www.id.blm.gov - scroll down to and click on Technical Bulletins), Boise, p.8 (2000)

Call Number:

U00BAT01IDUS

Keywords:

American Kestrel, Cooper's Hawk, Golden Eagle, Merlin, Northern Goshawk, Northern Harrier, Prairie Falcon, Red-tailed hawk, Sharp-shinned Hawk, Turkey Vulture

Abstract:

During autumn 1996 we conducted searches for raptor migration monitoring sites in southwestern and south central Idaho. Several sites were identified, accessed, and sampled to asses their utility for monitoring raptors during autumn migration. We sampled raptors through observation at 10 different monitoring sites from 24 August through 27 October 1996. We counted and identified raptors to species, as well as age and/or sex class if possible. Each monitoring site was visited from one to five times. At each site we spent time assessing where the best monitoring location was located based on site-specific small scale topography, habitat features, and visibility. Once we identified the best location, it was used as our observation point. None of his time was included in the observation period minutes. Observation periods lasted from 44 to 280 minutes. We only counted raptors if they flew south past an imaginary east/west line oriented through our observation point at each monitoring sites. Weather conditions were recorded at the beginning of each observation period, and then hourly thereafter.

Notes:

ANIMAL EF: BIRDS; ELECTRONIC FILE - ZOOLOGY: BIRDS

Citation (CSE style): Bates KK. 2000, 1997. Searches for raptor monitoring sites during autumn migration in southwestern and southcentral Idaho in 1996. Boise (ID): Idaho Bureau of Land Management. Final Report. 8 p. Technical Bulletin No. 00-4. Cooperative research project between: USDI Bureau of Land Management; Idaho Fish & Wildlife Foundation; Idaho Department of Fish and Game; USDA Forest Service. Available at: http://www.blm.gov/style/medialib/blm/id/publications/technical_bulletin....