JAN., 1909. BIRDS OF ILLINOIS AND WISCONSIN CORY. 



265 



Family MIMID^E. Thrashers, Mockingbirds, 



Catbirds, etc. 



Special Characters: Bill, as illustrated; first primary, less than 

 two-thirds as long as third; outer tail feathers, shorter than middle 

 ones; tarsus, scutellate in front; toes, deeply cleft. 



* GROUP 1. Wing, from 3.25 to 5.50 inches long. 



Catbird. 



Mockingbird. 



General plumage, dark slaty gray; under parts, slaty gray; under 

 tail coverts, dark chestnut brown; crown, blackish; first primary, 

 short. Dumetella carolinensis. 



Catbird. 



* For directions for measurement, see page 21. 



See No. 340. 



