82 NOETH AMERICAN WAEBLEES. 



has been traced as far south as the mountains near Lima, in central 

 Peru. 



Most accounts of the species include the Bahamas in its winter 

 ran^e, but the only records from these islands are of one occurrence 

 in April -' and one in October,^ both daring migration and undoubtedh^ 

 accidental. It is not probable that an}^ individual spends the winter 

 within many hundred miles of the Bahamas. The onh^ other record 

 made in the West Indies is one of accidental occurrence on the island 

 of Tobago. 



Spring migration. — Records of the Blackburnian warbler from 

 points south of the United States are not sufficient to permit tracing 

 the movements of the species northward to the southern boundary, nor 

 is there any correspondence of dates of its occurrence until it has 

 advanced many miles inland. The bird is common in spring at Ashe- 

 ville, N. C, where the average date of arrival for live 3^ears is April 

 14. In Chester County, 8. C, it is a rare spring migrant, while at 

 Raleigh, N. C, it was not seen in spring during man}" ^^ears' collect- 

 ing. At both these places, however, it is common in the fall. At 

 White Sulphur Springs, W. Va., the average date of spring arrival 

 for several years is April 22, and at French Creek, W. Va., April 27, 

 the earliest dates at the two places being April 17, 1893, and April 23, 

 1891, respectiveh^ The average of first dates at Washington is May 

 6; Beaver, Pa., and Alfred, N. Y., May 4; Portland, Conn., May 8; 

 northern Massachusetts, May 9; southern New Hampshire, May 8; 

 southern Maine and Montreal, Ma}" 16. Records of first arrival are: 

 Quebec, May 18, 1901; Petitcodiac, New Brunswick, May 18, 1887; 

 and Pictou, Nova Scotia, May 30, 1894. The three years' average of 

 closely agreeing dates of arrival in central Mississippi is April 14; the 

 earliest date at New Orleans is April 8, 1900. Brookville, Ind., is 

 reached on the average May 2, Chicago May 3, southern Michigan 

 May 6, southern Ontario May 7, Parry Sound District, Ontario, May 

 8, Ottawa May 11, southern Wisconsin May 9, Lanesboro, Minn., 

 May 15. At Aweme, Manitoba, an arrival was noted on May 20, 1899. 



The average rate of migration of the Blackburnian warbler from 

 the mouth of the Mississippi to its source, where the bird breeds, 

 appears to be scarcely 25 miles per day. The species is a rare migrant 

 in Texas, and the records of arrival are not regular. Among them 

 may be mentioned the following: Brownsville, April 20, 1890; Corpus 

 Christi. March 13, 1899; Refugio County, April 17, 1899; Bee County, 

 April 20, 1887; San Antonio, March 31*, 1880, April 1, 1890; Kendall 

 County, March 31, 1880; Houston, April 20. In correspondence with 

 these dates, rather than with those of Mississippi, Indiana, and Min- 

 nesota, are the dates of earliest arrival at St. Louis — May 10, 1884, 



« Bryant, Proc. Bost. Soc. Nat. Hist., YII, p. 110, 1859. 

 &Cory, Auk, IX, p. 49, 1892. 



