636 BULLETIN" 2 3, UNITED STATES NATIONAL MUSEUM 



The range as outlined is for the entire species of which three sub- 

 species are recognized. The Wilson's pileolated warbler {Wilsonia 

 'pusilla pusilla) breeds from northwestern and central Mackenzie to 

 Nova Scotia and New England, northern Michigan, northern Min- 

 nesota, southern Manitoba, central Saskatchewan and central eastern 

 Alberta; the northern pileolated warbler (TF. p. pileolata) breeds in 

 northern Alaska, northern Yukon and northwestern Mackenzie, Mon- 

 tana, eastern Wyoming, southwestern Colorado, north-central New 

 Mexico, and western Texas, and south from Alaska through the 

 Rockies and mountains of the Great Basin to northeastern and central 

 eastern California; and the golden pileolated warbler (TF. p. chrys- 

 eola) breeds along the coasts and coastal ranges from southwestern 

 British Columbia, south through western Washington, western 

 Oregon, to eastern and southern California. 



Casual in Florida (Tallahassee, Sharpes, and Fort Myers) ; Mis- 

 souri (Independence); and Mississippi (Gulfport). 



Migration. — Late dates of spring departure are : Costa Rica — ^Basin 

 of El General, April 24. Guatemala — above Tecpan, May 22. Baja 

 California — Sierra San Pedro Martir, May 21 ; Sonora — Rancho La 

 Arizona, western foothills of Pajaritos Mountains, May 25. 



Early dates of spring arrival are: Alabama — Florence, May 1. 

 Georgia — Milledgeville region, April 13. South Carolina — Chester, 

 May 10. North Carolina — Salisbury, May 8. Virginia — Charlottes- 

 ville, May 4. West Virginia — Bee, April 24; French Creek, May 7 

 (average of 10 years. May 12). District of Columbia — Washington, 

 May 1 (average of 38 years, May 8) . Maryland — Baltimore County, 

 May 4. Pennsylvania — Renovo, May 1. New Jersey — ^I^ong Valley, 

 May 5; Union County, May 12 (average, May 15). New York — New 

 York City, April 30. Connecticut — Hartford, May 3. Rhode 

 Island — Kingston, May 8. Massachusetts — Huntington, May 1. 

 Vermont — Wells River, May 6. New Hampshire — Monroe, May 5. 

 Maine — Lewiston and Winthrop, May 7. Quebec — Montreal, May 13. 

 New Brunswick — Saint John, May 15. Nova Scotia — Halifax, May 

 18. Newfoundland — St. Andrews, May 27. Labrador — Grand Falls, 

 Hamilton River, May 31. Louisiana — ^Monroe, April 16. Arkansas — 

 Rogers, April 27. Tennessee — Elizabethton, May 4. Kentucky — 

 Bowling Green, April 18. Missouri — St. Louis, and St. Charles, 

 April 29. Illinois — ^LeRoy, April 27; Chicago, May 6 (average, May 

 11). Indiana — Marion County, April 28. Ohio — South Webster, 

 April 25; central Ohio, May 2 (average. May 11). Michigan — Ann 

 Arbor, May 11. Ontario — Toronto, May 10; Ottawa, May 14 (aver- 

 age of 17 years. May 20) . Iowa — Buchanan County, May 7. Wis- 

 consin — Madison, May 4. Minnesota — Lanesboro and Minneapolis, 

 May 2 (average of 39 years for southern Minnesota, May 10). 



