OLIVE-SIDED FLYCATCHER 301 



Winter range. — Present information indicates that in winter this 

 species is concentrated in northwestern South America, from Colom- 

 bia (Cincinnati, Bogota, Minco, and La Concepcion) south through 

 Ecuador (Gualea) to Peru (Chaupe, Huambo, and Chancha). A 

 specimen taken on October 28, 1913, at Galipan, near Caracas, Vene- 

 zuela, seems to be the most easterly record in the winter range. 



Spr^hiff migration. — A late date of spring departure from the winter- 

 ing grounds is March 22, from Cincinnati, Colombia, while it has been 

 observed in migration at San Salvador, El Salvador, on April 24. 



Early dates of spring arrival in North America are: Florida — Fort 

 Myers, March 31. Virginia— Wise County, May 5. District of Co- 

 lumbia—Washington, May 9. New Jersey — p]nglewood, May 12. 

 New York — Rochester, May 14. Massachusetts — Harvard, May 16. 

 New Hajiipshire — ISIonadnock, May 18. Vermont — St. Johnsbury, 

 May 19. New Brunswick — Scotch Lake, May 22. Nova Scotia — 

 Halifax, May 26. Quebec— Montreal, May 31. Missouri — St. Louis, 

 May 8. Illinois — Urbana, May 12. Michigan — Ann Arbor, May 1 

 (exceptional). Ontario — London, May 13. Iowa, Hillsboro, May 15. 

 Minnesota — Minneapolis, May 9. Manitoba — Aweme, May 9. Ari- 

 zona — Huachuca Mountains, April 20. Colorado — Loveland, May 11. 

 Wyoming — Laramie, May 16. Montana — Columbia Falls, May 21. 

 Saskatchewan — Regina, May 20. Alberta— Belvedere, May 21. Cali- 

 fornia — Pasadena, April 24. Oregon — Corvallis, May 4. Washing- 

 ton — Tacoma, May 15, Alaska — Kenai, May 26. 



Fall migration. — Late dates of fall departure are: Alaska — Port 

 Snettisham, August 29. British Columbia — Atlin, September 2. 

 Washington — Prescott, September 5. Oregon — Prospect, September 

 25. California — Pasadena, September 26. Montana — Fortine, Sep- 

 tember 10. Wyoming — Laramie, September 18. Manitoba — Aweme, 

 September 4, Minnesota — Minneapolis, Septe.mber 16. Illinois — 

 Chicago, September 15. Michigan — Sault Ste. Marie, September 15. 

 Ohio — New Bremen, October 11. Quebec — Anticosti Island, Septem- 

 ber 3. Nova Scotia — Halifax, September 3, New Brunswick — St, 

 John, September 10. Maine — ^Winthrop, September 13. New Hamp- 

 shire — Dublin, September 14. Pennsylvania — Erie, September 18. 

 New York — Jamaica, September 26; Alabama (Genesee County), 

 October 17. It has been observed in southward migration at San 

 Salvador, El Salvador, on August 28. 



Casual records. — On the north shore of the Gulf of St. Lawrence 

 the olive-sided flycatcher has been detected on several occasions indi- 

 cating that it may breed in that region. It was recorded from God- 

 bout on June 6, 1883; a pair was seen during several successive days 

 between July 25 and August 10, 1912. on the Natashkwan River; one 

 was seen repeatedly on June 11, 12, and 13. 1921, at Mingun, and 



