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An Inventory Report on the Status of Diurnal Raptors at Risk in the Southern Grasslands of British Columbia (Ferruginous Hawk, Swainson's Hawk, Prairie Falcon, Peregrine Falcon) Cooper, J.M.
1998
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Abstract: Over 150 sites in the southern grassland ecosystems of interior British Columbia were surveyed for rare diurnal raptor nests in 1996. Most known historical falcon aeries in the study area were visited. Eleven active nests were found: one anatum Peregrine Falcon (Falco peregrinus), five Prairie Falcon (Falco mexicanus), and five Swainson’s Hawk (Buteo swainsoni). No Ferruginous Hawk (Buteo regalis) nests or birds were recorded. Populations of all four species were not estimated but are undoubtedly very small. Populations of Prairie and anatum Peregrine Falcons and Swainson's Hawks are also small compared to historical numbers, and Ferruginous Hawks occur irregularly. Survey results reinforce the listing of these raptors on the Red or Blue Lists. Several recommendations for further inventory and research are made, including more thorough surveys of each Wildlife Branch Management Region.
 
Cooper, J.M.. 1998. An Inventory Report on the Status of Diurnal Raptors at Risk in the Southern Grasslands of British Columbia (Ferruginous Hawk, Swainson's Hawk, Prairie Falcon, Peregrine Falcon). Ministry of Environment, Lands and Parks. Wildlife Working Report. WR92
 
Topic: Species status
Keywords: grasslands, raptors, nests, populations, conservation, status, research recommendations
ISSN:  Scientific Name: Buteo regalis, Buteo swainsoni, Falco peregrinus, Falco mexicanus
ISBN: 0-7726-3480-7 English Name: Prairie Falcon, Peregrine Falcon, Ferruginous Hawk, Swainson's Hawk
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