JAN., 1909. BIRDS OF ILLINOIS AND WISCONSIN CORY. 141 



Family CATHARTID^. American 

 Vultures. 



Size, large; plumage, black or dark brown; hind toe, short; claws, 

 not sharp; head, bare in adult; nostrils, large. 



GROUP 1. Wing, from 14 to 21 inches long. 

 SECTION 1. Wing, less than 17 inches long. 



Black Vulture. 



Head and fore-neck, bare; skin of head, blackish; general plumage, 

 black; primaries, hoary white beneath. Catharista urubu. 



Black Vulture. Carrion Crow, 

 See No. 150. 



