The data here given were obtained between October, 1920, and January, 1925, and concern only the birds present during the winter months. For the most part, the author makes little attempt to designate subspecies, thinking this a difficult matter to get from field observation, and he prefers to hold rather closely to binomial nomenclature. All records for which no county is given are from Chickasaw County, and in only a few instances are any data given for territory not directly adjoining Chickasaw County, those being for Delaware County at the Devil's Backbone State Park. I visited this park on December 23, 1923, and found some forms there which I thought should be included in this list, being in the same general region.
Proceedings of the Iowa Academy of Science
©1925 Iowa Academy of Science, Inc.
Spiker, Chas. J.
"Winter Bird Records of Chickasaw and Adjacent Counties,"
Proceedings of the Iowa Academy of Science, 32(1), 425-428.
Available at: https://scholarworks.uni.edu/pias/vol32/iss1/109