On March 5, 1927 two Government sparrow traps were placed in the back yard at my home in Iowa City in an effort to secure native birds for banding, an endeavor that I have carried on here since 1920. The traps were left in place without intermission until June 10, 1927 when they were stored not to be operated again until July 28. On September 14 use of the traps was discontinued for the year so that they were in operation but five months, the period covered by this report.
Proceedings of the Iowa Academy of Science
©1929 Iowa Academy of Science, Inc.
"Trapping and Banding Birds at Iowa City During 1927,"
Proceedings of the Iowa Academy of Science, 36(1), 373-375.
Available at: https://scholarworks.uni.edu/pias/vol36/iss1/116