ORDER PASSERES. 201 
489. Corvus caurinus Barrp. 
Northwest Crow. 
Corvus caurinus BAIRD, B. N. Am. 1858, 569. 
[B 428, C 2284, R 282d, C 342.] 
Geoc. Dist.— Northwest coast, from California to Sitka. 
490. Corvus ossifragus WILS. 
Fish Crow. 
Corvus ossifragus Wits. Am, Orn. V. 1812, 27, pl. 37, fig. 2. 
[B 429, C 229, R 283, C 343.] 
Geroc. Dist.— Atlantic and Gulf coasts, from southern Connec- 
ticut to Louisiana. Common in the lower Hudson Valley ; casual in 
Massachusetts. 
Genus NUCIFRAGA Brisson. 
Nucifraga Brisson, Orn. II. 1760, 58. Type, /V. caryocatactes. 
SusGENUS PICICORVUS BonapartTeE. 
Picicorvus Bonar. Consp. Av. I. 1850, 384. Type, Corvus 
columbianus WILLS. 
491. Nucifraga columbiana (WILs.). 
Clarke’s Nutcracker. 
Corvus columbianus Wits. Am. Om. III. 1811, 29, pl. 20, fig. 3. 
Nucifraga columbiana Auv. Orn. Biog. IV. 1834, 459. 
[B 430, C 230, R 284, C 344.] 
Groc. Dist.— Higher coniferous forests of western North Amer- 
ica, from the eastern slope of the Rocky Mountains to the Pacific, 
and from Putnam River, Alaska, south to Arizona and northern 
Lower California. Accidental in Kansas, Missouri and Arkansas. 
Genus CYANOCEPHALUS Bonaparte. 
Cyanocephalus Bonar. Oss. Stat. Zool. Eur. Vertebr. 1842, 17. 
Type, Gymnorhinus cyanocephalus WED. 
