Titelzusatz vol. 1, no. 1 (January 1939)-vol. 2, no. 6 (June 1940): Monthly bulletin of the Wisconsin Society of Ornithology
Titelzusatz vol. 2, no. 7 (July 1940)-vol. 5, no. 4 (October 1943): To encourage study of Wisconsin birds
Titelzusatz volume 6, number 1 (January 1944)-volume 49, no. 4 (winter 1987): A magazine of Wisconsin bird study
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