NORTHERN PRAIRIE WARBLER 437 



ally Bulls Island) ; the Bahamas (Nassau, Watling, and Caicos) ; the 

 Dominican Kepublic (Samana) ; the Virgin Islands (St. Thomas) ; 

 and the Lesser Antilles (Anguilla Island). East to the northern 

 Lesser Antilles (Anguilla, Barbuda, and Antigua.) South to 

 Antigua Island; Puerto Rico; Hispaniola (Gonave Island) ; Jamaica; 

 the Swan Islands; Banco Chinchorro, Quintana Roo; occasionally 

 south to Corn Island, Nicaragua. West to the islands off Quintana 

 Roo (Banco Chinchorro and Cozumel) ; western Cuba (Isle of Pines 

 and Habana) ; western Florida (Key West, Sanibel Island, Tarpon 

 Springs, and Gainesville) ; and southern South Carolina (Beaufort). 



The range as outlined includes two subspecies or geographic races. 

 The northern prairie warbler {D. d. discolor) inhabits all the breed- 

 ing range except the mangrove swamps of southern Florida from 

 New Smyrna and Anclote Key southward where it is replaced by the 

 Florida prairie warbler {D. d. collinsi). 



Migration. — Last dates of spring departure from the winter home 

 are: Virgin Islands — St. Croix, April 3. Puerto Rico — Mayagiiez, 

 April 23. Haiti — Grande Cayemite Island, April 13. Cuba — 

 Habana, May 8. Bahamas — May 13 (struck light). Mississippi — • 

 Edwards, May 30. 



Early dates of spring arrival are: Florida — De Land, March 13. 

 Alabama — Prattville, March 30. Georgia — Savannah, March 8. 

 North Carolina — Chapel Hill, April 1. Virginia — Lawrenceville, 

 April 5. West Virginia — Bluefield, April 22. District of Columbia — 

 Washington, April 12. Pennsylvania — Philadelphia, April 23. New 

 York — New York City, April 25. Massachusetts — Danvers, May 1. 

 Louisiana — Monroe, March 30. Mississippi — Gulfport, April 6. 

 Arkansas — Delight, April 7. Tennessee — Chattanooga, April 5. Ken- 

 tucky — Bowling Green, April 6. Missouri — St. Louis, April 11. In- 

 diana — Wheatland, April 15. Ohio — Fremont, April 11. Michigan — 

 Ann Arbor, May 2. Ontario — Toronto, April 17. Wisconsin — Madi- 

 son, April 23. Oklahoma — Norman, April 22. Kansas — ^Lake 

 Quivira, April 28, 



Late dates of fall departure are : Wisconsin — Milwaukee, October 8. 

 Missouri — St. Louis, September 23. Michigan — Detroit, September 

 30. Ontario — Point Pelee, September 5. Ohio — South Webster, Octo- 

 ber 8. Indiana — Waterloo, September 26. Illinois — Chicago, October 

 4. Kentucky — Bowling Green, October 15. Tennessee — Tate Spring, 

 September 25. Louisiana — Monroe, September 21. Mississippi — 

 Deer Island, October 29. New Hampshire — Jaffrey, September 1. 

 Massachusetts — Martha's Vineyard, October 6. New York — Far 

 Rockaway, September 28. Pennsylvania — Philadelphia, October 18 

 (struck city hall tower). District of Columbia — Washington, Octo- 

 ber 3. Virginia — Salem, October 9. West Virginia — Bluefield, Octo- 



981873—53 29 



