278 CHECK-LIST OF NORTH AMERICAN BIRDS. 
[B 209, part, C 88, R 103, C 129.] 
Geoc. Dist.— Southeastern United States, north to southern 
Maryland and Virginia, and casually to southern New England; 
south to the West Indies. 
663 a. Dendroica dominica albilora Ripew. 
Sycamore Warbler. 
Dendroica dominica var. albilora Baird MSS. Ripcw. Am. Nat. 
VII. Oct. 1873, 606. 
[B 209, part, C 88a, R 10324, C 130.] 
Geos. Dist.— Mississippi Valley, west to the Plains, north to 
Lake Erie and southern Michigan, and east to western North Caro- 
lina ; in winter south to southern Mexico, Honduras, Guatemala and 
Nicaragua. 
664. Dendroica graciz Bairp. 
Grace’s Warbler. 
Dendroica gracie *“‘Cours MSS.” Barrp, Rev. Am. B. I. April, 
1865, 210. 
[B—, C 87, R 104, C 128.] 
Geroc. Dist.— Southern New Mexico and Arizona, and southward 
into Sonora. 
665. Dendroica nigrescens (Towns.). 
Black-throated Gray Warbler. 
Sylvia nigrescens Towns. Journ. Ac. Nat. Sci. Phila. VII. 1837, 
IgI. 
Dendroica nigrescens BAIRD, B. N. Am. 1858, 270. 
[B1g2,'Ci75, Riek, © 116 
Geroc. Dist.— Western United States, north to Colorado, Oregon, 
and British Columbia west of the Cascades, migrating to southern 
Mexico in winter. 
666. Dendroica chrysoparia Sct. & SALv. 
Golden-cheeked Warbler. 
Dendreca chrysoparia Sci. & Sav. P. Z. S. 1860, 298. 
