114 



NORTH AMERICAN WARBLERS. 



Lower Rio Grande, May 9-13, 1878; Victoria County, May 3-4, 1887; 

 San Antonio, April 28, 1885, April 24, 1890, May 15, 1890, May 12-13, 

 1891; Houston, May 16, 1882; Austin, May 19, 1890; Dallas, May 

 3-18, 1898, May 3-7, 1899; Bonham, May 14, 1885; Gainesville, May 

 22, 1885, May 6-13, 1889. Farther north the records are: Emporia, 

 Kans., May 15, 1885; western Missouri, May 12-18, 1874; St. Louis, 

 May 19, 1882, May 16, 1883, May 21, 1884, May 13-22, 1885, May 

 10, 1886, May 14, 1887; Rising Fawn, Ga., May 14-20, 1886; Wash- 

 ington, May 15-30; eastern Pennsylvania, May 6-25; Scarboro, N. Y., 

 May 9, 1897; St. Johnsbury, Vt., May 20, 1900; St. John, New Bruns- 

 wick, May 24, 1891, and North Rivei-, Prince Edward Island, June 

 10, 1888. Southern Michigan is reached May 17;. Listowel, Ontario, 

 May 17; the Parry Sound District, Ontario, May 22, and Ottawa, May 

 24. An early arrival was noted at Brookville, Ind., May 7, 1881. 

 The first appear on the average at Chicago May 18, and on the same 

 date at Lanesboro, Minn. An individual was seen May 18, 1885, at 

 White Pkrth, Minn. , and another May 23, 1900, at Aweme, Manitoba. 

 Thus, generally speaking, a little less than four weeks is occupied 

 in the journey from Texas to Minnesota, which gives an average daily 

 travel of 45 miles. This high rate of speed is particularly to be noted, 

 both because the species is a late migrant and because the birds^ are 

 passing over a section of country in which none of them breed. 

 The same rate of speed in the South would just about fill the time 

 between the Costa Rican and Texan dates of arrival. 



The records show a comparatively short time spent in any one place 

 during migration. The dates of recorded arrivals in Texas do not 

 extend over quite a month, from the earliest at San Antonio, April 24, 

 1890, to the latest at Gainesville, Maj- 22, 1885; and the records for 

 any one year do not cover more than three weeks. The great bulk of 

 the birds occupy scarcely two weeks in passing a given place in the 

 centi-al Mississippi Valley. 



Fall iidgratum. — Notes on fall migration are almost lacking. The 

 last mourning warbler was noted at Ottawa August 28, 1896; North 

 River, Prince Edward Island, September 3, 1890; Renovo, Pa., Sep- 

 tember 26, 1899; Cambridge, Mass., September 30, and Ossining, 

 N. Y., October 1. Lloyd reports that mourning warblers had left 

 central Texas by the 1st of September, at which time Cherrie records 

 their arrival in Costa Rica, where he says they are not uncommon by 

 the middle of the month. A belated bird was seen at New Orleans- 

 October 7, 1896. 



680. Geothlypis tolmiei (Towns.). Macgillivray Warbler. 



The Macgillivray warbler is one of the common and characteristic 

 species of the western United States, and one of the few of that 

 region that proceed as far southeast as South America. It breeds 



