By: Hans-Günther Bauer and Peter Berthold
715 pages, 55 illus, 185 figs & tabs
This important publication provides a summary of various publications on local and regional variations in bird populations. It includes a critical evaluation and discussion of the causes of these variations, and should provide the basis upon which future conservation policies can be established.
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On behalf of Parque Nacional Nahuel Huapi I would like to thank NHBS. The book will be very useful for my students.
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