260 



CONIROSTRES. 



FAMILY V. 



COLTDyE. 



The Colli 



Gen. Chaeac. — Bill moderate, with the culmen elevated at the base, and the 

 sides compressed to the tij), which is acute j the nostrils placed in the middle 

 of a large membranous groove, with the opening small and exposed ; the 

 wings short ; the tail much lengthened and graduated ; the tarsi robust, and 

 the toes lengthened, the outer as long as the inner, the hind toe moderate, 

 united at the base of tbe inner toe, and directed forwards. 



Fig. 108.— thk white-backed coly. 



{Colius leticonotu^'.) 



These birds are peculiar to tlie continent of Africa, 

 where they perch upon trees, amongst the branches 



