Janice E. Arndt
901 Highway 3A, Nelson, B.C. V1L 6J5; e-mail: jarndt@telus.net
Abstract: Breeding Ospreys (Pandion haliaetus) were monitored to determine number of nesting attempts and breeding success in a selected area of the West Kootenay region of British Columbia. Twenty-seven Osprey pairs attempted to breed within the study area in 2006. Twenty-nine young were observed in 16 successful nests; the average number of young per occupied nest was 1.07 and per successful nest was 1.81. Breeding Canada Geese (Branta canadensis) used 36 Osprey nest sites. Ospreys were less likely to successfully raise young in nests that had been used by geese earlier in the season. While most measures of Osprey nesting activity and success in 2006 were below the average of the previous nine years, they fell within the range of values observed in that period.
Key words: Key words: Osprey, Pandion haliaetus, breeding population, nest success, monitoring program, British Columbia, Canada
Goose, Branta canadensis
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