532 BULLETIN 2 3, UNITED STATES NATIONAL MUSEUM 



The mourning warbler winters north to southern Nicaragua (Grey- 

 town) and western Venezuela (Encontrados). East to western 

 Venezuela (Encontrados) ; Colombia (Ocana and Bogota) ; and Ecua- 

 dor (Mapoto, Papallacta, and Oyacachi). South to Ecuador (Oya- 

 cachi). West to Ecuador (Oyacachi); Costa Kica (Beruca, Juan 

 Villas, and Cerro de Santa Maria) ; and Nicaragua (Greytown) . 



Migration. — Late dates of spring departure are: Venezuela — 

 Kancho Grande near Maracay, Aragua, April 9, Colombia — Santa 

 Marta region, April 11. Panama — Gatun, April 28. Costa Rica — 

 San Isidro del General, May 8. Salvador — Lake Chanmica, May 14. 

 Honduras — near Tela, May 10. Guatemala — La Carolina, May 15. 

 Tabasco — Reforma, May 22 ; Veracruz — Buena Vista, May 13. 



Early dates of spring arrival are: Puerto Rico — Santa Isabel, 

 March 21. Florida — St. Augustine, March 13. Virginia — Lexing- 

 ton, April 27. West Virginia — Cabell County, May 7. District of 

 Columbia — Washington, May 4 (average of 16 years. May 15) . Mary- 

 land — Elk River, May 7. Pennsylvania — Carlisle, May 3; Berwyn, 

 May 5. New Jersey — Bernardsville, May 5. New York — Buffalo 

 and Syracuse, May 2; Hempstead, Long Island, May 8. Connecti- 

 cut — Glastonbury, May 6. Rhode Island — Cranston, May 21. Massa- 

 chusetts — Manchester, May 11. Vermont — Wells River, May 10. 

 New Hampshire — East Westmoreland, May 8. Maine — Winthrop 

 and Big Lyford, May 10. Quebec — Montreal, May 20. Nova Sco- 

 tia — Antigonish, May 30. Newfoundland — Gander, June 7. Gulf 

 of Mexico — 30 miles south of mouth of Mississippi River, April 2. 

 Louisiana — Oak Grove, April 18. Mississippi — Edwards, April 28. 

 Arkansas — Helena, May 2. Tennessee — Memphis, May 5. Mis- 

 souri — Columbia, April 30. Kentucky — Bowling Green, April 20. 

 Ohio — Columbus area. May 1 (average, May 12). Indiana — Terre 

 Haute, May 2. Michigan — Ann Arbor, May 5. Ontario — Ottaw^a, 

 May 10 (average of 8 years, May 24). Illinois — Chicago region, 

 May 8 (average. May 16) . Wisconsin — Dane County, May 3. Iowa — 

 Sac County, May 4. Minnesota — Minneapolis, May 8 (average of 

 24 years for southern Minnesota, May 18). Texas — Rockport, April 

 31 ; San Antonio and Kemah, April 24. Oklahoma — Copan, May 16. 

 Kansas — Lawrence, May 12. Nebraska — Plattsmouth, May 6. South 

 Dakota — Mellette, May 14. North Dakota — Lower Souris Refuge, 

 Upham, May 13; Cass County, May 22 (average May 25). Mani- 

 toba — Margaret, May 13 ; Aweme, May 20 (average June 3) . Saskat- 

 chewan — Lake Johnston, May 25. Alberta — Glenevis, May 24. 



Late dates of fall departure are : Alberta — Glenevis, September 2. 

 Manitoba — Treesbank, September 25; Aweme, September 5 (average, 

 August 29). North Dakota — Fargo, September 21; Cass County, 

 September 18 (average, September 13). Nebraska — Hastings, Oc- 



