The author like many other auto drivers has for several years noticed dead birds on the primary roads so frequently that he began to count them and to meditate on the circumstances surrounding the accidents. From May to October, 1930, the readily recognizable birds were counted on 1,629 miles of Iowa primary roads traversed by auto at an average speed of 40 miles per hour. In a total of 58 dead birds, there were 28 red-headed woodpeckers (21 old, 7 young), 18 English sparrows, 5 pheasants, 3 flickers, l red-winged blackbird, 1 brown thrasher, 1 cedar waxwing and 1 robin.
Proceedings of the Iowa Academy of Science
©1932 Iowa Academy of Science, Inc.
Hendrickson, George O.
"Birds Found Dead on Iowa Primary Roads,"
Proceedings of the Iowa Academy of Science, 39(1), 251-252.
Available at: https://scholarworks.uni.edu/pias/vol39/iss1/72