186 CHECK-LIST OF NORTH AMERICAN BIRDS. 
[B 137, C 253, R 318, C 380.] 
Groc. Dist.— North America, breeding from the northern and 
the higher mountainous parts of the United States northward to 
British Columbia and the Saskatchewan River. Accidental on the 
Lower Yukon and in Greenland. In winter, south to Central 
America, Colombia, and northern Peru. 
SuBGENUS CONTOPUS CasanlIs. 
460. Contopus pertinax Cas. 
Coues's Flycatcher. 
Myiarchus pertinax Licut. Nomen. Mus. Berol. 1854, 16 (nomen 
nudum). 
Contopus pertinax Cas. Mus. Hein. II. Sept. 30, 1859, 72. 
[B—, C 254, R 319, C 381.] 
Gros. Dist.— Mountains of southern and central Arizona, south 
through Mexico to Guatemala. 
461. Contopus virens (LINN.). 
Wood Pewee. 
Muscicapa virens Linn. S.N. ed. 12, I. 1766, 327. 
Contopus virens CaB. J. f. O. 1855, 479. 
[Bi rgo) (Ces s iRig20,7C 332:4 
Geroc. Disr.— Eastern North America, west to the Plains, and 
from southern Canada southward, migrating through eastern Mexico 
and Honduras to Colombia and Ecuador. Breeds from Florida to 
Newfoundland. 
462. Contopus richardsonii (Swalns.). 
Western Wood Pewee. 
Tyrannula richardsoniti Swains. in Sw. & Ricu. F, B. A. II. 
1831, 146, pl. 46, lower fig. 
Contopus richardsoni BatrD, B. N. Am, 1858, 189. 
NB )238,C 25c0) Rigen Cis.) 
Geroc. Dist.— Western United States, from the Plains to the 
Pacific, north to British Columbia and the interior of British America, 
south through Central America to Colombia. 
