Life Histories of North American Birds of Prey, Vol. 1
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Produktbeschreibung
Excerpt from Life Histories of North American Birds of Prey, Vol. 1: Order Falconiformes This is the tenth in a series of bulletins of the United States National Museum on the life histories of North American birds. Previous numbers have been issued as follows: 107. Life Histories of North American Diving Birds, August 1, 1919. 113. Life Histories of North American Gulls and Terns, August 27, 1921. 121. Life Histories of North American Petrels and Pelicans and their Allies, October 19, 1922. 126. Life Histories of North American Wild Fowl (part). May 25, 1925. 130. Life Histories of North American Wild Fowl (part), June 27, 1925. 135. Life Histories of North American Marsh Birds, March 11, 1927. 142. Life Histories of North American Shore Birds (pt.1), December 31, 1927. 146. Life Histories of North American Shore Birds (pt.2), March 24, 1929. 162. Life Histories of North American Gallinaceous Birds, May 25, 1932. The same general plan has been followed, as explained in previous bulletins, and the same sources of information have been utilized. The nomenclature of the new Check-List of the American Ornithologists Union has been followed, but it has seemed best to continue in the same order of arrangement of families and species as given in the old (1910) check-list. An attempt has been made to give as full a life history as possible of the best-known subspecies and to avoid duplication by writing briefly of the others and giving only the characters of the subspecies, its range, and any habits peculiar to it. In many cases certain habits, probably common to the species as a whole, have been recorded for only one subspecies; such habits are mentioned under the subspecies on which the observations were made. The distribution gives the range of the species as a whole, with only rough outlines of the ranges of the subspecies, which cannot be accurately defined in many cases. The egg dates are the condensed results of a mass of records taken from the data in a large number of the best egg collections in the country, as well as from contributed field notes and from a few published sources. They indicate the dates on which eggs have been actually found in various parts of the country, showing the earliest and latest dates and the limits between which half the dates fall, the height of the season. The plumages are described only in enough detail to enable the reader to trace the sequence of molts and plumages from birth to maturity and to recognize the birds in the different stages and at the different seasons. No attempt has been made to describe fully the adult plumages; this has been done very well in the many manuals now available. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.
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