270 KEY TO THE BIRDS OF EASTERN NORTH AMERICA. 
FAMILY LANIIDAE. 
Shrikes. 
Bill, strong, notched near the end, and decidedly hooked; tarsus, 
scutellate; tail, rounded. But two species occur with us, both grayish 
birds with blackish wings and tail and a stripe through the eye. 
Crown and back, gray; underparts, 
white; a patch of black on the sides 
of the head; wing less than 4.15 
inches Jong. 
Loggerhead Shrike. 
Lanius ludovicianus. 
See No. 468. 
NX 
SS 
Upper plum- 
age, ash gray 
or gray tinged 
with buff; une 
468 derparts, 
ashy white, the feathers show- 
ing numerous faint narrow 
black bars; a black streak from 
bill through the eye; wing, 
more than 4.15 inches long. 
Northern Shrike 
Lanius borealis. 
See No. 467. 
