108 BIRDS THROUGH AN OPERA-GLASS. 



Birds whose general build is compact but slen- 

 der, and by whom the claw is used for holding 

 food. (Compare with robin and sparrows.) 



Oriole. 



Crow blackbird. 



Red-winged blackbird. 



Birds in which the females are smaller than the 

 males. 



Red-winged blackbird. 



Cowbird. 



Meadow-lark. 



Crow blackbird. 



Birds with long straight bills. (Compare with 

 swift, chickadee, finches, and sparrows.) 



Crow blackbird. 



Red-winged blackbird. 



Meadow-lark. 



Oriole. 



Birds that walk instead of hopping. (Compare 

 with flycatchers, sparrows, etc.) 



Crow blackbird. 



Red-winged blackbird. 



Cowbird. 



Meadow-lark. 



