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 W. P. Pycraft - Gay & Hancock ltd.
The wings of the bird not only lift the body from the earth, but they sustain it in the air by their marvellously complex movements. And this is true, in varying degrees of bird, and bat, and butterfly: of dragon-fly and beetle ...
by H. Eliot Howard - E. P. Dutton and company
From the contents: The Disposition to Secure a Territory; The Disposition to Defend the Territory; The Relation of Song to the Territory; The Warfare between Different Species; The Relation of the Territory to Migration; and more.
by Frank M. Chapman - D. Appleton & co
A pocket museum of the land birds of the eastern United States arranged according to season. The birds are drawn and reproduced with such accuracy that no essential detail of color or form is lost. They are all drawn to nearly the same scale.
by F. N. Whitman - The Gorham Press
A photographer's study of wild birds he found around the area in the 1900's. The nature photographer F. N. Whitman also gives detailed information to the photographer just trying their hand at bird photography and how to go about it.