File:Bird migration (1915) (14563294887).jpg

Identifier: birdmigration185cook (find matches)
Title: Bird migration
Year: 1915 (1910s)
Authors: Cooke, Wells Woodbridge, 1858-1916
Subjects: Birds Migration
Publisher: Washington, D.C. : U.S. Dept. of Agriculture
Contributing Library: U.S. Department of Agriculture, National Agricultural Library
Digitizing Sponsor: U.S. Department of Agriculture, National Agricultural Library

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use route No. 4, though this neces-sitates a flight of 500 to 700 miles across the Gulf of Mexico. A feAv traverse the more direct route No. 3,and still fewer, route No. 2. Only water birds make the 2,400-mil9 flight along route No. 1, from NovaScotia to South America. (See p. 11.) journeys between their winter home in Cuba and their summer homein New England, Another variation is illustrated by the robin, which occurs in themiddle districts of the United States throughout the year, in Canadaonly in summer, and along the Gulf of Mexico only in winter. Prob-ably no mdividual robm is a contmuous resident in any section; butthe robin that nests, let us say, m southern Missouri, spends the winternear the Gulf, while his hardy Canada-bred cousin is the winter tenantof the abandoned summer home of the southern bird. Most migratory birds desert the entire region occupied in summerfor some other district adopted as a winter home. These two homes Bui. 1 85, U. S. Dept. of Agriculture. Plate I
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Bobolink (Dolichonyx oryzivorus).(Upper figure, male; lower, female.) Bui. 1 85, U. S. Dept. of Agriculture. Plate II

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