ORDER PASSERES. 203 
[B'399, C eto Rae Gisso,) 
Geroc. Dist.— Eastern North America, west to Montana, eastern 
Nevada, Utah, and Idaho; north to Ontario, and the southern parts 
of Manitoba, Assiniboia, and Alberta; south, in winter, to the West 
Indies and South America. Breeds from the Middle States north- 
ward, and winters south of the United States. 
Genus MOLOTHRUS Swainson. 
Molothrus Swans. F. B. A. II. 1831, 277. Type, Fringilla 
pecoris GMEL. = Oriolus ater Bopp. 
495. Molothrus ater (Bopp.). 
Cowbird. 
Oriolus ater Bopp. Tabl. Pl. Enlum. 1783, 37. 
Molothrus ater Gray, Handl. B. II. 1870, 36. 
[B 400, C 211, R 258, C 313.] 
Geroc. Dist.— United States, from the Atlantic to the Pacific, 
north into southern British America, south, in winter, into Mexico. 
495a. Molothrus ater obscurus (GMEL.). 
Dwarf Cowbird. 
Sturnus obscurus GMEL. S. N. I. li. 1788, 804. 
M (olothrus | ater var. obscurus Cours, B. N. W. 1874, 180, in 
text. 
[B—, C 2r1a, R 258a, C 314.] 
Geroc. Dist.— Southern United States, from Texas to southern 
Arizona and Lower California, south into Mexico. 
Genus CALLOTHRUS Cassin. 
Callothrus Cass. Proc. Ac. Nat. Sci. Phil. 1866, 18. Type, 
Psarocolius eneus AGL. 
