one CHECK-LIST OF NORTH AMERICAN BIRDS. 
Famity BUTEONIDSE. 
Biteo codperi Cassin. Cooper’s Henhawk. [14.] 
Buteo cooperi Cassin, Proc. Acad. Nat. Sci. Phila., 1856, 253. (Near 
Mountain View, Santa Clara Co., California.) 
Only known from the type specimen, obtained by Dr. J. G. Cooper, 
near Mountain View, Santa Clara County, California, in October, 
1856. The validity of the species is in doubt; possibly the light phase 
of B. harlant. (Cf. Ripeway, Auk, I, 1884, 253, 254; II, 1885, 165, 
166.) 
Famity ICTERIDZ. 
Icterus icterus (LinN&us). Troupial. [16.3.] 
Oriolus icterus Linnaus, Syst. Nat., ed. 12, I, 1766, 161. (Cayenne.) 
The only alleged North American occurrence of this South American 
species is Audubon’s record for Charleston, South Carolina. The 
only specimen stated to have been taken may have been an escaped 
cage bird. 
FamMILy FRINGILLID. 
Acanthis bréwsteri (RripGway). Brewster’s Linnet. [17.] 
Aigiothus (flavirostris var.) brewsterii Ripaway, Amer. Nat., VI, July, 
1872, 434. (Waltham, Mass.) 
Known only from the type specimen, taken at Waltham, Massa- 
chusetts, November 1, 1870. Possibly a hybrid between Acanthis 
linaria and Spinus pinus. 
Spiza townsendi (AupUBON). Townsend’s Bunting. [18.] 
Emberiza townsendii AupUBON, Orn. Biog., II, 1834, 183. (New Garden, 
Chester Co., Pa.) 
The type specimen, taken May 11, 1833, at New Garden, Chester 
County, Pennsylvania, by Mr. J. K. Townsend, remains unique. Its 
peculiarities cannot be accounted for by hybridism, nor probably by 
individual variation. 
