BLACKPOLL WARBLER 



197 



General Distribution. — Eastern North America ; north to the limit 

 of tree growth, Labrador to Alaska; west to the Rocky Mountains. 



Summer Range. — Principally in Canada, but a few nest south to 

 northern Maine (Franklin and Washington Counties), the mountains 

 of New Hampshire, Vermont, and New York, and, probably, to 

 northern Minnesota (Leach Lake). The southernmost breeding record 

 is at Seven Lakes, near Manitou, Colorado, at an altitude of 11,000 

 feet. The BlackpoU occurs sparingly in Colorado, less commonly in 

 New Mexico (in migration) and northwest through Montana to 

 Yukon and Alaska. 



Winter Range. — Northern South America to Ecuador, Guiana 

 and eastern Brazil. 



Spring Migration. — No BlackpoU Warbler seems to spend the 

 winter north of South America, while the southernmost breeding 

 grounds are in northern New York and central Colorado. Therefore, 

 no BlackpoU Warbler can have a migration route less than twenty-five 

 hundred miles in length, and the extremes of the range — Alaska and 

 Brazil are twice that distance apart. It is one of the very few War- 

 blers that migrate directly across the West Indies from South America 

 to Florida. This species is correctly considered one of the latest 

 migrating Warblers, and is seldom seen in the Gulf states before the 

 last week in April. It makes the trip from Florida to Maine at twice 

 the speed of the Black and White Warbler, and the individuals that 

 nest in Alaska travel at an average speed of not less than seventy-five 

 miles per day. 



PI,ACE 



Atlantic Coast — 



Atlanta, Ga. (near) 



Raleigh, N. C 



Asheville, N. C. (near) 



Washington, D. C 



Germantown, Pa 



Englewood, N. J 



Southeastern New York 



Central Connecticut 



Providence, R. I 



Boston, Mass 



Southern New Hampshire 



Lewiston, Me 



Montreal, Can 



Upper Hamilton River, Quebec 

 Placentia, Newfoundland 



No. of 

 years' 

 record 



II 

 S 

 7 



6 



S 

 14 

 II 



6 

 14 



9 



6 



Karliest date of 

 spring arrival 



April 



April 



April 



May 



May 



May 



May 



May 



May 



May 



May 



May 



May 



May 



June 



22, ipo2 



28, 1894 



29, 1893 



4, i8go 



5, 1887 



6, 1900 

 2, 1899 



11, 1889 



12, igoa 

 TO, 1897 

 16, 189a 

 16, 1901 

 28, 1892 



31 



I, 1890 



