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.
Home page url
Download or read it online for free here:
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 Bradford Torrey - Houghton, Mifflin and company
Excellent nature book for the student of birds, easy reading with descriptions of an obsessive birder from 100 years ago. Covers his travels, and birding, in New England. A must read for today's birders. First published in 1885.
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 J. M. Bechstein - W. & R. Chambers
The natural history of cage birds, their management, habits, food, diseases, treatment, breeding, and the methods of catching them. The author described all the indigenous European birds with which he was acquainted that are capable of being tamed.