122 U. S. NATIONAL MUSEUM BULLETIN 211 



March 29. Montana — Choteau, April 8; Billings, April 15; Fortine, 

 April 23 (median of 7 years, May 3). Saskatchewan — Qu'Appelle, 

 April 6 (median of 14 years, May 4); Wiseton, April 15 (median of 

 20 years, April 27). Alberta — Stony Plain, April 15. California — 

 Siskiyou County, March 17; Fresno, March 23. Oregon — Klamath 

 Falls, March 1; Weston, March 15. Washington — Spokane County, 

 March 20. British Columbia — Okanagan Landing, April 22. 



Late dates of spring departure are: Michoacan — Quiroga, April 29. 

 Sonora — Guirocoba, May 10. Arkansas — Huttig, May 6. Ken- 

 tucky — Guthrie, May 20. Missouri — Palmyra, May 20. Illinois — 

 Chicago, May 21. Texas — Corsicana, June 4; Hidalgo, May 24 

 Oklahoma — Cleveland County, May 29; Oklahoma City, May 28. 

 New Mexico — Glenrio, May 18. Arizona — Tucson, May 13. Cali- 

 fornia — Orange County, May 26; Death Valley, May 20. 



Early dates of fall arrival are: California — Daggett, July 19. 

 Colorado — Yuma, July 14; Weldona, July 15. New Mexico — Clayton 

 and Glenrio, July 14. Oklahoma — Oklahoma City, July 13. Texas — 

 Somerset, July 12; Waco, July 16. Michigan — Bruce Crossing, 

 August 24. Indiana — Indianapolis, August 22. Missouri — Concor- 

 dia, July 23. 



Late dates of fall departure are: Alaska — 100 miles west of Point 

 Hope, October 12 (only record). British Columbia — Penicton, 

 October 19. Washington — White Bluffs, October 14. Oregon — 

 Harney County, November 20. Nevada — Indian Springs, October 25. 

 California — Stockton, November 19; San Geronimo, October 17. 

 Alberta — Andrew, September 28. Saskatchewan — Indian Head, 

 October 20; Wiseton, September 28 (median of 6 years, September 25). 

 Montana — Huntley, November 15; Fortine, October 6. Idaho — 

 Rupert, September 18. Wyoming — Laramie, October 20 (average of 

 5 years, October 7). Utah — Ashley Creek, Unitah County, September 

 30. Colorado — Fort Morgan, November 10 (median of 12 years, 

 September 7) ; Boulder, October 30. Arizona — Tombstone, November 

 21. New Mexico — Clayton, November 22. Manitoba — Winnipeg, 

 October 28; Treesbank, October 20 (median of 14 years, September 10). 

 North Dakota — Rice Lake, September 17. South Dakota — Mellette, 

 October 26; Sioux Falls, October 9 (average of 5 years, September 26). 

 Nebraska — Neligh, November 26; Gage County, November 5. 

 Kansas — Clearwater, October 14; Harper, October 10. Oklahoma- 

 Oklahoma City, October 17. Texas — Houston, November 28; Com- 

 merce, November 24. Minnesota — Hutchinson, November 14 

 (average of 6 years for southern Minnesota, October 6) ; St. Vincent, 

 October 25. Wisconsin — Appleton, October 24 ; LaCrosse, October 1 1 . 

 Iowa — Elkader, November 3; Northwood, October 23; Sioux City, 

 October 17 (median of 11 years, September 15). Michigan — Detroit, 



