Raptor Population Index (RPI) Project
Over the last year, a partnership has been formed that brings together three leading raptor research organizations: HMANA, Hawk Mountain Sanctuary Association (HMSA) and HawkWatch International (HWI).
The goal of the partnership:
- To jointly develop a Raptor Population Index (RPI) program... to determine annual population indices and trends of hawks counted during spring and fall migrations at sites throughout the United States, Canada and Central America.
The specific objectives of the RPI are to (1) produce scientifically defensible indices of annual abundance and trends for each species of migratory raptor, from as many count sites as possible; and (2) make those results available widely, i.e. to participating count sites, the scientific community, conservation agencies and the public.
Download this brochure for more information about the RPI project.
You can become a founding sponsor of the RPI program by contributing either online or by mail.
UPDATE (April 12, 2005):
An RPI project progress report is available for download.
UPDATE (November 24, 2005):
An RPI project progress report is available for download.