164 BULLETIN 167, UNITED STATES NATIONAL MUSEUM 



Grafton, March 21; Wahpeton, March 23; and Argusville, March 

 29. Minnesota — Minneapolis, February 22; and Becker County, 

 March 11. Manitoba — Treesbank, March 15; Margaret, March 23; 

 and Winnipeg, April 10. Saskatchewan — Dinsmore, March 17; 

 Wiseton, March 21; Muscow, March 30; and Skull Creek, April 11. 

 Wyoming — Laramie, March 25; and Yellowstone Park, March 29. 

 Idaho — Rathdrum, March 20; Coeur d'Alene, March 25; and Merid- 

 ian, March 27. Montana — Missoula, March 12; Fortine, March 17; 

 and Fort Custer, March 21. Alberta — Camrose, March 17; Stony 

 Plain, March 30 ; Alliance, April 1 ; and Flagstaff, April 5. Yukon — 

 Forty Mile, April 11. Alaska — Kupreanof Island, March 5; Craig, 

 March 12; Wrangell, April 15; Beaver Mountains, April 20; and 

 Tanana Crossing, May 7. 



A redtail (no. 309391) banded on March 27, 1926, at McGregor, 

 Iowa, was killed on May 16, 1926, at Howard Lake, ISIinn. 



Foil migration. — Late dates of fall departure are : Alaska — Savage 

 River, September 18; and Bettles, October 5. Yukon — Selkirk Set- 

 tlement, October 12. Alberta — Belvedere, October 14; Glenevis, Oc- 

 tober 14; and Athabaska Landing, October 31. Montana — Missoula, 

 October 1 ; Anaconda, October 9 ; Gallatin .County, October 12 ; and 

 Three Forks, October 17. Idaho — Priest River, September 29. 

 Wyoming — Yellowstone Park, November 17. Saskatchewan — Mus- 

 cow, October 3; Indian Head, October 20; and Eastend, October 21. 

 Manitoba — Winnipeg, October 19; Treesbank, October 29; and 

 Aweme, October 30. Minnesota — Minneapolis, November 23; and 

 Isanti County, November 20. North Dakota — Charlson, October 19 ; 

 Argusville, October 21; and Red River Valley, October 29. On- 

 tario — Ottawa, October 22; Kingston, October 30; Point Pelee, No- 

 vember 1; and Toronto, November 7. Prince Edward Island — 

 North River, October 24. Nova Scotia — Pictou, October 12; and 

 Wolfville, November 20. New Brunswick — St. John, October 2; 

 and Scotch Lake, October 25. Quebec — Montreal, October 24; Que- 

 bec, October 24; and Hatley, October 29. Maine — New Vine- 

 yard, October 23 ; North Livermore, November 3 ; Matinicus Island, 

 November 8; and East Hebron, November 30. 



Records of banded birds throw some light on the general migra- 

 tion routes of this species. Five young redtails banded during June 

 and July at Muscow, Saskatchewan, were recaptured later in the 

 same year as follows: No. 661180 was taken on September 22 near 

 Grafton, N. Dak.; no. 309016 was killed on October 12 at Butter- 

 field, Minn. ; no. 200645 was shot near Chetopa, Kans., on November 

 6 ; no. 309019 was recovered on November 3 at Brumley, Mo. ; and 

 no. 200641 was shot at Chelsea, Okla., on November 24. One banded 

 at Milwaukee, Wis. (no. 233936) in November was retaken the fol- 



