Excerpt from Life Histories of North American Shore Birds, Vol. 1: Order Limicolae
This is the seventh 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, Pelicans and their Allies, October 19, 1922.
126. Life Histories of North American Wild Fowl, May 25, 1923.
130. Life Histories of North American Wild Fowl, June 27, 1925.
131. Life Histories of North American Marsh Birds, "1926." (= March 11, 1927).
The same general plan has been followed, as explained in previous bulletins, and the same sources of information have been utilized.
The classification and nomenclature adopted by the American Ornithologists" Union, in its latest check list and its supplements, have been followed, mainly, with such few changes as, in the author"s opinion, will be, or should be, made to bring the work up to date, and in line with recent advances in the science.
The main ranges are as accurately outlined as limited space will permit; the normal migrations are given in sufficient detail to indicate the usual movements of the species; no attempt has been made to give all records, for economy in space, and no pretense at complete perfection is claimed. Many published records, often repeated, have been investigated and discarded; many apparently doubtful records have been verified; some published records, impossible to either verify or disprove, have been accepted if the evidence seemed to warrant it.
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.
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