A Quantitative Study of the Nocturnal Migration of Birds
by George H. Lowery
Publisher: University of Kansas 1951
The nocturnal migration of birds is a phenomenon that long has intrigued zoologists the world over. Yet, despite this universal interest, most of the fundamental aspects of the problem remain shrouded in uncertainty and conjecture.
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by Frank M. Chapman - D. Appleton & co.
To learn to call a bird by its right name is the first step in the study of ornithology. We may investigate the birds, or desire merely a knowledge of the species in our garden, but in either case we are confronted by this question of identification.
by Chester A. Reed - Doubleday, Page and Co.
An illustrated dictionary of North American birds. You will find more than seven hundred birds illustrated, with hundreds of photographs. This guide gives you the information you need to make a quick identification of any bird you are likely to meet.
by Bruce Wright (ed.) - Smashwords
A collection of papers and articles from international bald eagle experts, which present a complete portrait of the status and ecology of the bald eagle in Alaska. Myriad topics include culture, biology, population history and status, etc.
by Neltje Blanchan - Doubleday, Page & Company
An introductory acquaintance with 150 birds commonly found in the gardens, meadows, and woods about our homes. The purpose of the writer is to give, in a popular and accessible form, knowledge which is accurate and reliable about the life of birds.