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,AC5 



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 

 Eort Simpson, Mackenzie . . . 



No. of 

 years' 

 record 



4 



9 



4 



i6 



S 

 5 

 6 

 6 

 9 

 7 

 9 

 i8 

 15 

 IS 

 6 

 8 

 9 

 8 

 7 

 8 

 3 



3 



7 



10 



10 



9 



14 



13 



12 



6 

 i8 



S 

 II 



10 



S 

 5 

 7 



Average date of 

 spring arrival 



March l6 

 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 



S 

 I 



3 

 9 

 12 



14 

 17 



March 27 

 March 31 

 April 4 



Earliest date of 

 spring arrival 



March 13, 1885 

 March 21, 1899 

 March 29, 1887 

 March 19, 1894 

 March 28, 1891 

 April 6, 1892 

 April 7, 190S 

 April 15, 1891 

 April 20, 1899 

 April 20, 1889 

 April 23, igo2 

 April 22, 1896 

 April 20, 1896 

 April 20, 1896 

 May I, 1897 

 April 27, 1899 

 April 27, 

 May 3, 

 May ID, 

 May 9, 

 May 13, 



1897 

 1890 

 1895 



1895 

 1889 



March 19, 1905 

 March 21, 1897 

 April I, 1888 

 April 3, 1882 



