ORDER PASSERES. 361 



Hylocichla ustulata (NUTTALL). 



RANGE. North America, breeding mainly (except in mountains) 

 north of the United States; in winter southern Mexico to Brazil and 

 Bolivia. 



a. Hylocichla ustulata ustulata (NUTTALL). Russet-backed Thrush. [758.] 



Turdus ustulatus NUTTALL, Manual Orn., Land Birds, ed. 2, 1840, 400 

 (and errata, p. vi). (Columbia River, probably near Fort Vancouver, 

 Washington.) 



RANGE. Pacific coast of North America to northern South America. 

 Breeds in Canadian, Transition, and possibly Upper Austral zones from 

 Juneau, Alaska, to San Diego County, California; winters from Vera Cruz, 

 Guatemala, and Costa Rica to eastern Ecuador and British Guiana. 



b. Hylocichla ustulata swainsoni (TSCHUDI). Olive-backed Thrush. [758a.] 



Turdus swainsoni TSCHUDI, Fauna Peruana, 1845-46, Orn., 28. (New 

 Jersey.) 



RANGE. North and South America. Breeds in lower Hudsonian and 

 Canadian zones from northwestern Alaska, northwestern Mackenzie, central 

 Keewatin, southern Ungava, and Newfoundland south to Kenai Peninsula, 

 Alaska, eastern Oregon, Nevada, Utah, Colorado, northern Michigan, New 

 York, and in mountains from Massachusetts to Pennsylvania and West 

 Virginia ; winters from southern Mexico to Peru, Bolivia, Brazil, and Argen- 

 tina; casual in Cuba and Bermuda. 



Hylocichla guttata (PALLAS). 







RANGE. Northern North America and mountains of western 

 United States; in winter southern United States, Cuba, and Mexico 

 to tableland of Guatemala. 



a. Hylocichla guttata guttata (PALLAS). Alaska Hermit Thrush. [759.] 



Muscicapa guttata PALLAS, Zoogr. Rosso-Asiatica, I, 1826 (1811?), 465. 

 (Kadiak Island, Alaska.) 



RANGE. Western North America. Breeds mainly in Hudsonian Zone 

 from south central Alaska (Mt. McKinley) south to Kadiak Island and Cross 

 Sound; winters south to Lower California, Sonora, Chihuahua, Nuevo Leon, 

 and Tamaulipas; in migration east to eastern Oregon, Nevada, and New 

 Mexico. 



