270 



KEY TO THE BIRDS OF EASTERN NORTH AMERICA. 



FAMILY LAN1ID/E. 



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 011 the sides 

 of the head; wing less than 4.15 

 inches long. 



Loggerhead Shrike. 



Lanius ludovicianus. 



See No. 468. 



Upper plum- 

 age, ash gray 



or gray tinged 

 with buff; un- 

 468 '^\ der parts, 

 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. 



