Bird populations, bird census, prairie birds, plant succession, habitat changes, urbanization
We repeated a bird census of a prairie/field community that was done by Kendeigh (1941) in 1940. Changes in the bird populations were compared with changes in vegetation, agricultural land use for the county, and trends in urbanization. Grassland birds did decline in abundance due to causes similar to those cited in other studies. The increase in forest and edge nesting species was more unusual to this study, and probably correlated with the woody succession that had occurred.
Journal of the Iowa Academy of Science
© Copyright 1990 by the Iowa Academy of Science, Inc.
Bernstein, Neil P.; Baker, Kristine K.; and Wilmot, Sherry R.
"Changes in a Prairie Bird Population From 1940 to 1989,"
Journal of the Iowa Academy of Science: JIAS: Vol. 97:
, Article 6.
Available at: http://scholarworks.uni.edu/jias/vol97/iss4/6