316 CHECK-LIST OF NORTH AMERICAN BIRDS. 
southern Florida, Bahamas, and Greater Antilles, and also casually north to 
South Carolina and in the Lesser Antilles; in migration casually to New York, 
Massachusetts, and Connecticut. 
b. Dendroica dominica albiléra Rrpaway. Sycamore Warbler. [663a.] 
Dendroica dominica var. albilora Ripaway, Amer. Nat., VII, Oct., 1873, 
606. (Belize, British Honduras.) 
Rance.— East central United States to Central America. Breeds in Upper 
and Lower Austral zones of Mississippi Valley from southeastern Nebraska, 
southern Wisconsin, southern Michigan, Ohio, West Virginia, and western 
North Carolina south to eastern Texas and Louisiana; winters from Puebla, 
Tepic, and Colima, Mexico, to Nicaragua and Costa Rica and casually in the 
Lower Rio Grande Valley; in migration occasional east to South Carolina. 
Dendroica gracie Bairp. Grace’s Warbler. [664.] 
Dendroica gracie, BairD, Review Amer. Birds, 1865, 210. (Fort Whipple, 
Arizona.) 
RaNncE.— Western North America. Breeds chiefly in Transition 
Zone in mountains of southern Colorado, Arizona, New Mexico, 
Sonora, and Chihuahua; winters in Mexico south to Tepic, Jalisco, 
and Michoacan; casual in migration to central Colorado and western 
Texas. 
Dendroica nigréscens (J. K. 'TowNsEND). Black-throated Gray 
Warbler. |665.] 
Sylvia nigrescens TOWNSEND, Journ. Acad. Nat. Sci. Phila., VII, 1837, 
191. (Near Fort William [Portland], Oregon.) 
RanGcE.— Western North America. Breeds in Transition Zone 
from southern British Columbia, Nevada, northern Utah, and north- 
western Colorado south to northern Lower California, southern 
Arizona, and northern New Mexico; winters in southern Lower 
California, and in Mexico from Durango to Michoacan, Vera Cruz, 
and Oaxaca. 
Dendroica chrysoparia SCLATER & SALvIN. Golden-cheeked Warbler. 
[666.] 
Dendreca chrysoparia ScuaTeR & SALvin, Proc. Zool. Soc. Lond., 1860, 
298. (Mountains of Vera Paz, Guatemala.) 
