Abstract
Vision Quest Windelectric Inc. began a program in 1999 to examine bird and bat interactions with wind turbines in southern Alberta. To assess factors that may contribute to collisions of birds and bats with wind turbines, and to determine collision rates of each group of species, we observed bird reactions to turbines and systematically surveyed the ground around turbines for bird and bat carcasses at Vision Quest's Castle River Wind Farm between April 2001 and December 2002 and at other Vision Quest turbines in southern Alberta prior to construction of the wind farm. These are the first systematically collected data on bird and bat collisions from a Canadian wind farm.