Eastern Screech-Owl, playback census, owl population density
Roadside playback surveys of Eastern Screech-Owls were conducted each spring and fall from September 1984 through April 1986 in Summit Township, Marion County, Iowa. An average of 18 screech-owls were located during each survey, often near riparian woodland. Screech-owl population densities (0.1-0.2 owls/km2) were comparable to those in other regions.
Journal of the Iowa Academy of Science
© Copyright 1991 by the Iowa Academy of Science, Inc.
Geus, David E. and Bowles, John B.
"Relative Abundance of Eastern Screech-Owls in a South-Central Iowa Township,"
The Journal of the Iowa Academy of Science: JIAS: Vol. 98:
, Article 13.
Available at: http://scholarworks.uni.edu/jias/vol98/iss2/13