OEDEE PASSERES. 277 



Genus PASSERELLA Swainson. 



Passerella Swainson, Classif . Birds, II, 1837, 288. Type, by monotypy, 

 Fringilla Uiaca Merkem. 



Passerella iliaca (Mereem). 



Range.— Northern and v/estem North America, south in winter 

 to the southern border of the United States. 



a. Passerella iliaca iliaca (Meerem). Fox Sparrow. [585.] 



Fringilla iliaca Merrem, Beytr. besond. Gesoh. Vogel, II, 1786, pi. x. 

 (North America.) 



Range. — North America. Breeds in Boreal zones from tree limit in north- 

 eastern Alaska, northern Mackenzie, central Keewatin, northern Ontario 

 (Moose Factory), and northern Ungava south to central Alberta, northern 

 Manitoba, southern Keewatin, Magdalen Islands, and Newfoundland; win- 

 ters from lower Ohio and Potomac valleys (occasionally further north) to 

 central Texas and northern Florida; casual on the coast of southern Alaska 

 and in California. 



b. Passerella iliaca unalaschcensis (Gmelin). Shumagin Fox Sparrow. 



[585a.] 



Emberiza unalascftcensis Gmelin, Syst. Nat., I, ii, 1789, 875. ("Aoon- 

 alashka,'' Alaska.) 



Range. — Unalaska Island, Alaska Peninsula, and Shumagiu Islands; win- 

 ters south to northern California. 



c. Passerella iliaca megarhjncha Baird. Thick-billed For Sparrow. [5856.] 



Passerella megarhynchus Baird, Rep. Expl. & Surv. R. R. Pac, IX, 

 1858, 925. (Fort Tejon, California.) 



Range. — Mountains of California. Breeds in Transition Zone on both 

 slopes of the Sierra Nevada from Mt. Shasta to Mt. Whitney; winters in 

 southwestern California; casual in Marin County. 



d. Passerella iliaca schistdcea Baikd. Slate-colored Fox Sparrow. [686c.] 



Passerella schisfacea Baird, Rep. Expl. & Surv. R. R. Pac, IX, 1858, 

 490. (South Fork of Platte River, about 25 miles east of northeastern 

 corner of Colorado, Nebraska.) 



Range. — Rocky Mountain region of United States. Breeds in Transition 

 Zone from interior of British Columbia and northwestern Montana south to 



