While the phenomena connected with bird migration have been studied for more than two thousand years much is yet to be learned of this most interesting and still more or less obscure characteristic of our "feathered bipeds." In attempting to throw some light upon their movements new methods have been devised and, in a degree, perfected. Until recently it has been the aim of ornithologists to study the migratory habits of species or even of larger zoological groups; but of late an effort has been made to study individuals of a species by marking the birds in some permanent manner so that they may be subsequently observed and their movements definitely recorded.
Proceedings of the Iowa Academy of Science
©1921 Iowa Academy of Science, Inc.
"Bird Banding and Incidental Studies,"
Proceedings of the Iowa Academy of Science, 28(1), 151-159.
Available at: https://scholarworks.uni.edu/pias/vol28/iss1/31