1338 U.S. NATIONAL MUSEUM BULLETIN 23 7 part 3 



Baboquivari Mountains, May 12; Fort Verde, May 11. Colorado — 

 Mack, Mesa County, May 29; Clear Creek district, June 12. Cali- 

 fornia — Twenty-nine Palms, May 6; Polvadero Gap, Kettleman Hills 

 area, May 17. Nevada — Meadow Valley, Lincoln County, May 24; 

 Eldorado Mountains, May 3. Oregon — Lake County, May 20. 

 Washington — Cheney, April 27. 



Early dates of fall arrival are: Washington — Prescott, September 2. 

 Oregon — Wheeler County, September 13; Warner Valley, August 30. 

 Nevada — Indian Springs, September 10; Boulder Beach, September 

 17. California — Eagleville, Modoc County, September 2; Los Ange- 

 les, September 20. Utah — St. George area, numerous by October 1. 

 Colorado — Denver area, mid-September; Colorado Springs, September 

 8. Arizona — Pima County, September 23. Kansas — Manhattan, 

 October 9; Wallace, October 12. Texas — Guadalupe Peak (10 miles 

 east), October 6; Chisos Mountains, Green Gulch, November 14. 

 Sonora — Cajon Bonito Creek, Septembei 8. Baja California and off- 

 shore islands Los Coronados, Todos Santos, San Benito, Cedros, 

 October 7. Tamaulipas — Matamoros, November 25. Las Tres 

 Marias — Maris Madre, December 28. 



Late dates of fall departure are: Alaska— Kowak River (now 

 Kobuk) opposite the mouth of Hunt River, September 2; Nushagak, 

 September 18; Fairbanks (70 miles southeast), October 20; Juneau, 

 October 1. Mackenzie — Great Bear Lake, September 5. Ontario — 

 Shagamu River, August 10. British Columbia — Alberta — Edmonton, 

 September 26. Washington — Monument 83 on U.S. and Canada 

 boundary at long. 120°38%', September 3; Harts Pass, during the 

 second week of August. 



Egg Dates. — Alaska: 52 records, May 21 to July 13; 42 records, 

 May 23 to June 15. 



Alberta: 3 records, June 13, June 21, June 28. 



British Columbia: 6 records, June 7 to June 22. 



Mackenzie: 3 records, June 15, June 30, July 15. 



Yukon Territory: 11 records, June 1 to June 17. 



ZONOTRICHIA LEUCOPHRYS ORIANTHA Oberholser 



Mountain White -crowned Sparrow* 

 Contributed by Barbara Blanchard DeWolfe 



Habits 



This race consists of a group of western populations of white- 

 crowned sparrows that breed chiefly at high altitudes in the Canadian 



♦Additional material on this race is included in the account of Nuttall's white- 

 crowned sparrow, pp. 1292-1324. 



