Abundance and Productivity of Prairie Falcons and Golden Eagles in the Snake River Birds of Prey National Conservation Area 2003 Annual Report

Long-term research and monitoring in the Snake River Birds of Prey National Conservation Area (NCA) revealed that the number of Prairie Falcon (Falco mexicanus) pairs declined significantly between 1976 and 1977; the number of facon paris nesting in certain stretches of the NCA in 1997 was approximately half the number that nested in the same stretches in 1976 (Steenhof et al. 1999). In response to concerns raised about the declines, the U.S. Bureau of Land Management (BLM) funded the USGS Forest and Rangeland Ecosystem Science Center's Snake RIver FIeld Station (SRFS) to assess Prairie Falcon and Golden Eagle (Aquila chrysaetos) abundance and productivity in the NCA in 2002.