Cooper's hawk, endangered species, nesting status
The Cooper's Hawk was once considered a common nesting species in Iowa. Organochlorine pesticides and their residues, along with habitat loss contributed to its decline throughout the Midwest after the 1940's. This species was classified as endangered in Iowa in 1984, but recent trends in nests found indicate that the population of these hawks has increased. Since April 1988, 53 nests have been discovered in Iowa. Due to the apparent population growth, this species was removed from Iowa's endangered species list in 1994.
Journal of the Iowa Academy of Science
© Copyright 1997 by the Iowa Academy of Science, Inc
Conrads, David. J.
"Nesting Status of the Cooper's Hawk in Iowa: 1988-1996,"
Journal of the Iowa Academy of Science: JIAS: Vol. 104:
, Article 4.
Available at: http://scholarworks.uni.edu/jias/vol104/iss4/4