BAY-BREASTED WARBLER 



193 



shuns Mexico, the West Indies, and the United States south of Virginia, 

 east of the Allegheny Mountains ; the great bulk passes north through 

 the Mississippi Valley, west to eastern Texas (Corpus Christi, Port 

 Bolivar), Missouri (Freistatt), and Iowa (Grinnell) ; casual or acci- 

 dental in South Dakota (May 1888), Montana (Big Sandy, May 24, 

 1903), and Alberta (Medicine Hat). 



Spring Migration. — 



PI<ACE 



No. of 

 years' 

 record 



Average date of 

 spring arrival 



Earliest date of 

 spring arrival 



Atlantic Coast — 



Chester County, S. C. . 



Washington, D. C 



Renovo, Pa 



Southeastern New York 

 Central Massachusetts . 



Southern Maine 



St. John, N. B 



Montreal, Can 



Pictou, N. S 



Mississippi Valley — 



St. Louis, Mo 



Morgan Park, 111 



Brookville, Ind 



Oberlin, O 



Petersburg, Mich 



Southern Ontario 



Ottawa, Ont 



Aweme, Man 



4 

 5 

 3 

 7 

 6 

 12 

 16 

 3 



May 12 

 May 13 

 May 8 

 May 16 

 May 18 

 May 21 

 May 23 



May 7 

 May 5 

 May 8 

 May 8 

 May 13 

 May 12 

 May 17 

 May 16 



May s, 1888 

 May 9, 1903 

 May II, 1897 

 May 3, 1899 

 May 8, i^s 



May IS, 1889 

 May 19, 1891 

 May 23, 189s 



May 3, 1883 

 May 2, 1900 

 May 2, 1884 

 May 4, 1902 

 May 10, 1893 

 May 6, 1889 

 May II, 1886 

 May 13, 1899 



Fall Migration. — 



FI,ACB 



Ottawa, Ont. ... 

 St. John, N. B. . 

 Glen EUyn, 111. . 

 Germantown, Pa 



No. of 

 years' 

 record 



Average date of 

 last one seen 



September 8 



September 18 

 September 28 



I<atest date of 

 last one sten 



September 16, 1888 

 September i, 1890 

 October 4, 1897 

 October 19, i^s 



The Bird and its Haunts. — Although close observation will reveal 

 the presence of Bay-breasts during both the spring and fall migrations, 

 they are generally to be classed among the rarer Warblers the mere 

 sight of which is stimulating. Occasionally, however, the weather so 

 affects their migration that they come en masse and for a brief 

 period are actually abundant. On the morning of May 27, 1872, 



