The Migration of North American Sparrows 



TENTH PAPER 



Compiled by Professor W. W. Cooke, Chiefly from Data in the Biological Survey 



With Drawings by Louis Agassiz Fdertks 

 (See frontispiece) 



IPSWICH SPARROW 



Sable Island is the only breeding- place known; from here the species 

 migrates along the Atlantic coast as far as Georgia, where it was taken near 

 Darien, January 8 and 15, 1890. 



About one-fifth of all the individuals remain on Sable Island throughout 

 the winter; the remainder leave the Island in October and return in March; 

 they have been taken in January all along the coast from Maine to Georgia, 

 but comparatively few winter north of Massachusetts. Some dates of arrival 

 are: Seguin Island, Me., October 11, 1900; eastern Massachusetts, average 

 October 29, earliest October 22, 1889; Shinnecock Bay, N. Y., October 12, 

 1884; Mount Pleasant, S. C., November 6, 1906. The earliest spring date in 

 Maine is March 20, 1875; the latest dates are: Far Rockaway, N. Y., April 3, 

 1885; North Truro, Mass., April 10, 1890; St. John, New Brunswick, April n, 



i2. 



SAVANNAH SPARROW 



The Savannah Sparrow has been separated into four forms, which, together, 

 extend from ocean to ocean and from Guatemala to Labrador and Alaska. 

 East of the Rocky Mountains, the species winters principally in the southern 

 third of the United States, and breeds in the northern third and northward, 

 the wintering and breeding ranges being thus separated by a district 100 to 

 300 miles wide, in which the species is known only as a migrant. West of the 

 Rocky Mountains, the species breeds south to southern Mexico, and winters 

 north to northern California, the wintering and breeding ranges overlapping 

 for more than 1,500 miles. 



SPRING MIGRATION 



PLACE 



Washington, D. C 



Philadelphia, Pa 



Northern New Jersey.. 



Ithaca, N. Y 



Alfred, N. Y 



Holland Patent 



Hartford, Conn 



Providence, R. I 



Taunton, Mass. (near) 

 Beverly, Mass 



Number 



of years' 



record 



9 

 3 

 9 



5 

 20 



3 

 9 



4 

 5 

 9 



Average date of 

 spring arrival 



March 20 

 March 31 

 April 10 

 April 1 2 

 April 18 

 April 16, 

 April 9 

 April 16 

 April 7 

 April 4 



Earliest date of 

 spring arrival 



Rare, winter. 

 March 25, 1907 

 March 13, 1909 

 March 23, 1905 

 April 3, 1910 

 April 12, 1890 

 March 31, 1888 

 March 31, 1905 

 March 22, 1890 

 March 26, 1898 



(144) 



