BLACK-THEOATED GEEEN WAEBLEE. 89 



1885, March 27, 1886, March 28, 1888, March 28, 1889, March 27, 

 1890, and April 2, 1891. Still earlier dates were March 22, 1897, and 

 1898. These dates seem very earh^ when compared with those of the 

 first aiTival of the species at points immediately north and west. 

 The last week in April is considered an early date for the spring 

 appearance of the species at Washington; the earliest dates on which 

 its arrival in the mountains directly west of Raleigh is recorded 

 are April 13, 1899, and April 15, 1893, the average for three years — 

 1890, 1891, and 1894— being April 30; while at Eubank, Ky., a 

 hundred and fifty miles northwest, on the other side of the moun- 

 tains, April 9, 1891, April 9, 1894, and April 10, 1895, are the earliest 

 recorded dates of arrival. Average dates of arrival, resulting from 

 several years of observation, are: Washington, D. C, and Renovo, Pa., 

 April 26; Beaver, Pa., and Englewood, N. J., April 30; Alfred, N. Y., 

 May 1; Boston, May 1; central Connecticut, May 3; southern New 

 Hampshire, May 3; southern Maine, May 6; Quebec, May 10; central 

 Nova Scotia and St. John, New Brunswick, May 13; North River, 

 Prince Edward Island, May 17. West of the Alleghenies the dates of 

 arrival are approximately the same as farther east, notwithstanding the 

 fact that the eastern birds have considerably farther to travel than the 

 western. Records of average date of arrival are: Brookville, Ind., 

 April 29; Chicago, May 1; southern Michigan and southern Ontario, 

 May 2; Parry Sound district, Ontario, May 6; Ottawa, May 13; south- 

 eastern Iowa, May 5; Lanesboro, Minn., May 7. A black-throated 

 green warbler was seen at Aweme, Manitoba, May 13, 1898; Medicine 

 Hat, Assiniboia, May 17, 1894; Edmonton, Alberta, May 15, 1897; 

 and at Athabasca Lake, June 3, 1901. 



Spring migration in Texas is rather early, as the bird winters regu- 

 larly only a little south of the Rio Grande. One very early individual 

 was seen on February 28, 1894, at Hidalgo, but the species was not 

 again noted until several weeks later. The recorded dates of arrival 

 in Texas are as follows: Corpus Christi, March 23, 1878, March 24, 

 1891; San Antonio, March 13, 1880, March 20, 1887, March 26, 1889, 

 April 1, 1890, March 26, 1891; Austin, April 1, 1890; Dallas, March 

 16, 1898, March 17, 1899. It will be noticed that there is no regular 

 progression of dates in Texas from the south northward. • This is 

 true not only of the present species, but of almost every other bird 

 whose arrival has been noted sufiaciently often and at enough different 

 places to permit comparison. Some dates of the last migrants seen in 

 spring in Texas are as follows: San Antonio, May 23, 1890; Kerrville, 

 May 15, 1900; Dallas, May 15, 1898. Considering how far north of 

 Texas the birds breed, these are rather late dates of passage through 

 the State. 



Fall migration. — Since the black-throated green warbler is abun- 

 dant in migration in the southern Alleghenies and equally common in 



