94 BIRDS. 



* Tail much shorter than the long, pointed wings. (CormnoB.) 



\ Plumage glossy black CORVUS, 1. 



** Tail longer than the short, rounded wings. (Garrulince.) 

 | Conspicuously crested ; chiefly blue; quills black-barred. 



CYANOCITTA, 3. 

 \\ Iridescent black and white; tail much longer than wings. 



PICA, 2. 

 \\$ Chiefly gray, no blue ; tail scarcely longer than wings. 



PERISOREUS, 4. 



/. CORVUS, Linnaeus. RAVENS. 



1. C. corax, L. RAVEN. Feathers of throat stiffened, 

 elongated, nacrow and lanceolate, their outlines very 

 distinct; L. 25; W. 17; T. 10. N. Am., chiefly north 

 and westward; rare E. of the Mississippi. Also European. 

 (C. carnivorus, Bartr.) 



2. C. americanus, Aud. CROW. Feathers of throat 

 short, broad, obtuse, with their webs blended; gloss of 

 plumage purplish violet; head and neck scarcely lus- 

 trous; L. 20; W. 13; T. 8. E. N. Am., chiefly eastward; 

 abundant. (C. frugivorus, Bartr.) 



3. C. ossifragus, Wilson. FISH CROW. Gloss of 

 plumage green and violet, evident on head and neck; 

 L. 1C; W. 11; T. 7. New England to Florida, chiefly 

 southern, and found only along the coast. (C. maritimiis, 



Bartr.) 



2. PICA, Cuvier. MAGPIES. 



1. P. pica (L.) var. hudsonica, (Sab.) Coues. MAGPIE. 

 Lustrous black ; belly, shoulders, and wing-edgings 

 white ; L. 19; W. 8; T. 13, much graduated. West- 

 ern, E. to L. Michigan. 



3. CYANOCITTA, Strickland. BLUE JAYS. 



1. C. cristata, (L.) Str. BLUE JAY. Blue; collar 

 and frontlet black ; grayish below; wings and tail clear 



