The Migration of Vireos 



SECOND PAPER 



Compiled by Professor W. W, Cooke, Chiefly from Data 



in the Biological Survey 



With drawings by Louis Agassiz Fuertes 



BLACK-CAPPED VIREO 

 Texas is the princi|)al summer home of the Black-capped Vireo, whence 

 it ranges north, occasionally to southwestern Kansas. Six years' records at 

 Kerrville, Texas, show an average date of arrival of March 23, with the earHest 

 March 19, 1901. The first was seen at San Angelo, Texas, April 6, 1885; at 

 Gainesville, Texas, April 17, 1885; at Comstock, Texas, April 23, 1901; and at 

 Winfield, Kansas, April 22, 1902. The last one seen at San Angelo, Texas, in 

 1884, was on Septemper 25, and in 1885, on September 16. The first was seen 

 on the volcano of Toluca, Mexico, September 11, 1893. 



WHITE-EYED VIREO 



Three forms of the White-eyed Vireo are at present recognized in the United 

 States. One of them includes the non-migratory birds of southern Florida, 

 a second the non-migratory birds in the valley of the lower Rio Grande of Texas, 

 while all the migratory WTiite-eyed Vireos belong to the third form. All the 

 dates in the following tables apply to the migratory form, but it is not possible 

 to trace or time the movements until the individuals have passed to the north 

 of the regions occupied by the non-migratory forms. 



SPRING MIGRATION 



PLACE 



Atlanta, Ga. (near).. . 



Raleigh, N. C 



Asheville, N. C. (near) 

 Washington, D. C. . . . 



Berwyn, Pa 



Englewood, N. J 



New Providence, N. J. 

 Shelter Island, N. Y. . 

 Southern Connecticut. 

 Eastern Massachusetts 



Kerrville, Tex 



Gainesville, Tex 



Helena, Ark 



Chattanooga, Tenn. . . 



Athens, Tenn 



Eubank, Ky 



St. Louis, Mo 



Quincy, 111.. 



Bloomingtorf", Ind 



Brookville, Ind 



Waterloo, Ind. (near). 



Keokuk, la 



Southern Kansas 



Lincoln, Neb 



Number 

 of years' 

 record 



9 

 21 



5 

 22 



4 

 10 



Average date of 

 spring arrival 



April 7 

 April 2 

 April 15 

 April 23 

 May 7 

 May 7 

 May 7 

 May s 

 May 7 

 May 9 

 March 21 

 March 25 

 April 6 

 April 10 

 April 12 

 April ID 

 April 16 

 April 28 

 April 25 

 April 25 

 April 30 

 May 6 

 Mav 6 



Earliest date of 

 spring arrival 



March 31, 1893 

 March 24, 1899 

 April 9, 189^ 

 April 18, 1S96 

 May 5, 1892 

 May 3, 1902 

 April 30, 1890 

 May I, 1 89 1 

 Mav 4, 1902 

 May 4, 1887 ■ 

 March 9, 1907 

 March 16, 1889 

 March 31, 1897 

 .'Vpril 5, 1907 

 March 24, 1907 

 April 7, 1890 

 April II, 1896 

 April 25, 1883 

 April 21, 1900 

 April 23, 1889 

 April 25, 1902 

 May 4, 1902 

 May 4, 1906 

 May 12, 1900 



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