40 



BLACK AND WHITE WARBLER 



Spring Migration. — A few Black and White Warblers winter in 

 southern Florida, so that the only way of knowing the beginnings 

 of spring migration in that district is from the records of the striking 

 of the birds at the lighthouses. Both at Alligator Reef and at Som- 

 brero Key lighthouses in southern Florida, this species begins to 

 strike early in March. Thence, northward the progress is so slow — 

 an average of twenty miles per day — that it is the middle of May 

 before the species has reached the Gulf of St. Lawrence. 



PI, ACE 



Atlantic Coast — 



Northern Florida 



Atlanta, Ga. (near) 



Frogmore, S. C. (near) 



Raleigh, N. C. (near) 



Asheville, N. C. (near) 



French Creek, W. Va 



Washington, D. C 



Beaver, Pa 



Renovo, Pa 



Germantown, Pa 



Englewood, N. J 



Southeastern New York 



Central Connecticut 



Eastern Massachusetts 



Providence, R. I 



Southern New Hampshire 



Southern Maine 



Montreal, Can 



Quebec, Can 



St. John, N. B 



North River, Prince Edward Isl 



Mississippi Valley — 



New Orleans, La 



Helena, Ark 



Eubank, Ky 



Brookville, Ind 



Waterloo, Ind 



Oberlin, Ohio 



Detroit, Mich 



Petersburg, Mich 



Listowel, Ont 



Parry Sound District, Ont. . . 

 Ottawa, Ont 



Southeastern Iowa 



Chicago, 111 



Southern Wisconsin 



Lanesboro, Minn 



Elk River, Minn 



Aweme, Manitoba 



Fort McMurry, Athabasca . . 



Fort Chippewyan, Athabasca 



Fort Simpson, Mackenzie . . . 



No. of 

 years' 

 record 



4 

 9 

 4 



i6 

 5 

 5 

 6 

 6 

 9 

 7 

 9 



i8 



15 



15 



6 



8 



9 

 8 



7 



3 

 7 



ID 

 10 



9 



14 

 13 



12 



6 



i8 



5 

 II 



10 



5 

 5 

 7 



Average date of 

 spring arrival 



March i6 

 April 2 

 April 3 

 March 27 

 April 3 

 April 13 

 April II 

 April 22 

 April 28 

 April 27 

 April 26 

 April 28 

 April 28 

 April 28 

 May 

 May 

 May 

 May 

 May 

 May 

 May 



5 

 I 



3 

 9 

 12 



14 



17 



March 27 

 March 31 

 April 4 



May 2 

 April 27 

 May I 

 April 28 

 May I 

 May 4 

 May 7 

 April 19 

 April 30 

 May 2 

 April 28 

 May 3 

 May 9 



May 25 



Earliest date of 

 spring arrival 



March 13, 

 March 21, 

 March 29, 

 March 19, 

 March 28, 

 April 6, 

 April 7, 

 April IS, 

 April 20, 

 April 20, 

 April 23, 

 April 22, 

 April 20, 

 April 20, 

 May I, 

 April 27, 

 April 27, 

 May 3, 

 May 10, 

 May 9, 

 May 13, 



1885 

 1899 

 1887 

 1894 

 1891 

 1892 



190S 

 1891 



1899 

 1889 

 1902 

 1896 

 1896 

 1896 

 1897 

 1899 

 1897 

 1890 



1895 

 1895 

 1889 



March 19, 

 March 21, 

 April I, 

 April 3, 

 April 27, 

 April 22, 

 April 24, 

 April 23, 

 April 26, 

 April 30, 

 April 28, 



1905 

 1897 

 1888 

 1882 

 1902 



1899 

 1904 

 1896 

 1896 

 1899 

 1905 



April 23, 1899 

 April 28, 1897 

 April 23, 1888 

 May I, 1886 

 April 30, 1901 

 May IS, 1901 

 May 26, 1893 

 May 23, 1904 



