Northern goshawk breeding survey in northwestern Arizona - 1993
Driscoll JT and MacVean SR. 1994. Northern goshawk breeding survey in northwestern Arizona - 1993. Arizona Game and Fish Department
Objectives of the 1993 northwestern Arizona northern goshawk surveys were to: a) examine all historical breeding areas for occupancy, b) survey historical breeding areas for active nests, c) survey scheduled prescribed bum areas on the North Rim of Grand Canyon National Park for breeding northern goshawks, and d) survey areas where northern goshawks have been observed in previous years but active nests have not been found.