ORDER PASSERES. 215 
591a. Loxia curvirostra stricklandi Ripvcw. 
Mexican Crossbill. 
Loxia curvirostra stricklandi Ripew. Pr. U. S. Nat. Mus. VIII. 
1885, 354- 
[B 318a, C 143a, R 172a, C 200.] 
Groc. Dist.— Mountains of Wyoming and Colorado, west to the 
Sierra Nevada, and south through New Mexico, Arizona, and the 
tablelands of Mexico to Guatemala. 
522. Loxia leucoptera GMEL. 
White-winged Crossbill. 
Loxta leucoptera GMEL. S. N. I. ii. 1788, 540. 
[B 319, C 142, R 173, C 198.] 
Groc. Dist.— Northern parts of North America, south into the 
United States in winter. Breeds from northern New England 
northward. 
Genus LEUCOSTICTE Swainson. 
Leucosticte SwAINsS. in Sw. & Ricu. Fauna Bor. Am. II. 1831, 
265. Type, Linaria tephrocotis SWAINS. 
523. Leucosticte griseonucha (Branpr). 
Aleutian Leucosticte. 
Fringilla (Linaria) griseonucha BRanvT, Bull. Ac. St. Pétersb. 
Nov. 1841, 36. 
Leucosticte griseinucha Bonap. Consp. Av. I. 1850, 537: 
[B 323, C 144@, R 174, C 205.] 
Groc. Dist.— Aleutian Islands, including Kadiak, Unalaska, 
Pribilof, and Commander Islands. 
524. Leucosticte tephrocotis SwaIns. 
Gray-crowned Leucosticte. 
Linaria (Leucosticte) tephrocotis Swains. in Sw. & Ricu. Fauna 
Bor. Am. II. 1831, 265, pl. 50. 
Leucosticte tephrocotis Swatns. in Sw. & Ricw. Fauna Bor. Am. 
LT, £8325) 404. 
