FAMILY CORVID.E. — JAYS, CROWS, ETC. 211 
Group 3. Wing, 5.50 to 6.50 inches long. 
Upper parts, pale blue, or purplish blue; tail, bright blue, barred with black, and 
(except middle feathers) tipped with white; wings, blue, marked with white ; 
underparts, ashy white; breast, with black band. Blue Jay. 
Cyanocitta cristate 
See No. 360. 
Forehead, throat, and sides of head, dull white; back of crown and nape, black- 
ish; back, gray; underparts, ashy, palest on the throat. 
Canada Jay. 
Perisoreus canadensis, and races. 
See No. 363. 
Group 4. Wing, 6.50 to 8.50 inches long. 
Head and breast, black; tail, long, showing more or less green and purple reflec- 
tions. American [lagpie. 
Pica pica hudsonica. 
See No. 359. 
SUBFAMILY CORVINA. 
Crows and Ravens. 
Group 5. Wing, 9.50 to 15 inches long. 
Plumage, black; wing, over 
11.50; tarsus, over 2.10; 
bill, over 1.80. 
Crow. 
Corvus anv ricanus, and races. 
See No. 366. 
