LTJTESCENT WAEBLER. 41 



cago is May 6, in southern Ontario May 13, and at Ottawa May 18. 

 The averages for seven years at Lanesboro, Minn., and Aweme, Mani- 

 toba, are May 2 and May 7, respectively. The first arrival was seen 

 at Red Deer, Alberta, May 11:, 1892; Fort Chippewyan, Athabasca, 

 May 23, 1901; Fort Resolution, Mackenzie, May 22, 1860; Fort Simp- 

 son, Mackenzie, Ma}^^ 21, 1904; and on the Kowak River, Alaska, Ma}^ 

 25, 1899. The species is so rare along the Atlantic coast that no regu- 

 lar northward movement in that region can be traced. 



Some of the recorded dates of latest occurrence in spring are as 

 follows: At Gainesville, Fla., April 11, 1887; at Coosada, Ala., April 

 15, 1878; near Beaufort, S. C, April 29, 1885; in Chester County, 

 S. C, April 24, 1889; at New Orleans, March 11, 1894; at Corpus 

 Christi, Tex., April 22, 1891; at San Antonio, Tex., April 30, 1890, 

 and at Dallas, Tex., April 30, 1898. The last orange-crowned war- 

 blers to leave the southern limit of their winter range in Mexico take 

 their departure the first week in April, and about a month later the 

 latest northward migrants pass through central Missouri. 



Fall migration. — But few records have been made of the fall move- 

 ments of this species. It is never common in the fall at St. Louis, 

 but has been noted there on different dates ranging from September 9 

 to October 26. The record of a single individual at Key West, Fla., 

 September 8, 1889, is certainly very earl3^ The last were noted near 

 latitude 64^ north of Fort Rae, Mackenzie, August 16, 1903; at 

 Aweme, Manitoba, October 3, 1901; Lanesboro, Minn., October 6, 

 1891; Ottawa, September 30, 1889; Chicago, October 1, 1896; and 

 Berwyn, Pa., November 29, 1894. Other fall records are Cambridge, 

 Mass., September 30 and October 2; Lynchburg, Va., September 22, 

 1898; Chester County, S. C, October 21, 1887; Charleston, S. C, 

 November 27; Key West, October 5; San Angelo, Tex., September 

 4, 1885; and San Pedro River, Arizona, near the Mexican boundary, 

 October 11, 1892. By the last of November the species has become 

 common at the southern limit of its winter range. 



This warbler makes no migration b}^ water, so far as known, but 

 reaches its winter home entirely overland. 



646a. Helminthopliila celata lutescens (Kidgw. ). Lutescent Warbler. 



This Pacific slope form of the orange-crowned w^arbler breeds from 

 southern California to southern Alaska and east to the mountains of 

 Nevada. It winters southward from central California, and has been 

 found in winter by the parties of the Biological Survey throughout 

 western Mexico in Chihuahua, Sinaloa, elalisco, Colima, and Morelos, 

 and from the coast to interior points 6,000 feet above sea level. The 

 lutescent warbler arrives about March 12 in central California, and 

 about March 23 in northern Oregon. It was noted at Chilliw^ack, Brit- 

 ish Columbia, Ap -il 17, 1889. In the Huachuca Mountains of Arizona 



