Open Access. Powered by Scholars. Published by Universities.®

Urban Studies and Planning Commons

Open Access. Powered by Scholars. Published by Universities.®

Iowa State University

Physical Sciences and Mathematics

Natural Resource Ecology and Management Publications

Articles 1 - 1 of 1

Full-Text Articles in Urban Studies and Planning

Weather Factors Influencing Winter Roosts Of American Crows In Central Iowa, Joshua D. Obrecht, Stephen J. Dinsmore Jan 2008

Weather Factors Influencing Winter Roosts Of American Crows In Central Iowa, Joshua D. Obrecht, Stephen J. Dinsmore

Natural Resource Ecology and Management Publications

We investigated the effects of season and weather on the winter roosting behavior of American Crows (Corvus brachyrhynchos) in central Iowa from January through March 2006. The peak number of birds recorded at a roost in Ames, Story County was 9,000+ in early February, and the number of individuals entering the roost decreased through February and March. Crows tended to enter the roost later in the day as winter neared completion. High wind speed and low light intensity caused individuals to enter the roost earlier in the day. Temperature did not affect arrival time of crows. Wind speed, light ...