ORDER PASSERES. 229 



RANGE. Western North America, from east central British Columbia and 

 Montana south to southern California, Arizona, and western Texas. 



Corvus caurinus BAIRD. Northwestern Crow. [489.] 



Corvus caurinus BAIRD, Rep. Expl. & Surv. R. R. Pac., IX, 1858, 569. 

 (Fort Steilacoom, Washington.) 



RANGE. Northwest coast from Kadiak Island and Kukak Bay, 

 Alaska, to Puget Sound, Washington. 



Corvus ossifragus WILSON. Fish Crow. [490.] 



Corvus ossifragus WILSON, Amer. Orn., V, 1812, 27, pi. 37, fig. 2. (Great 

 Egg Harbor, N. J.) 



RANGE. Carolinian and Austroriparian faunas of Atlantic and 

 Gulf coasts from lower Delaware and Hudson River valleys and Con- 

 necticut to Louisiana and Florida; casual in Massachusetts. 



[Corvus frugilegns LINNAEUS. Rook. [490.1.] 



Corvus frugilegus LINN^US, Syst. Nat., ed. 10, I, 1758, 105. (Sweden.) 



RANGE. Europe in general, including Great Britain, and Kashmir 

 and northwestern India east to central Asia; winters in southern Europe 

 and northern Africa; accidental in Greenland.] 



[Corvus comix LINNAEUS. Hooded Crow. [490.2.] 



Corvus cornix LINNAEUS, Syst. Nat., ed. 10, I, 1758, 105. (Sweden.) 



RANGE. Great Britain and continental Europe, except the south- 

 western part; casual in Iceland and Greenland.] 



GENUS NUCIFRAGA BRISSON. 



Nucifraga BRISSON, Orn., II, 1760, 58. Type, by monotypy, [Nucifraga] 

 nucifraga BRISSON = Corvus caryocatactes LINN^US. 



SUBGENUS PICICORVTTS BONAPARTE. 



Picicorvus BONAPARTE, Consp. Avium, I, 1850, 384. Type, by mono- 

 typy, Corvus columbianus WILSON. 



