The need for rapid indices to determine the spring population trends of ring-necked pheasants, Phasianus colchicus, on a statewide basis has resulted in the development of the crowing count (Kimball, 1949) and a male roadside count (Kozicky, 1952). Preliminary evidence (Kozicky, 1952) showed evidence that there was a higher degree of variation in areas of low population as compared to areas of high population (50 or more birds per section). Therefore, the intention of this study was to analyze the inherent variations in these two methods on secondary pheasant range in Iowa and compare them to findings in Winnebago County, our primary pheasant range.
Proceedings of the Iowa Academy of Science
©1953 Iowa Academy of Science, Inc.
Klonglan, Eugene D. and Kozicky, Edward L.
"Variations in Two Spring Indices of Male Pheasant Populations, Story County, lowa,"
Proceedings of the Iowa Academy of Science, 60(1), 660-664.
Available at: https://scholarworks.uni.edu/pias/vol60/iss1/90