130 FIELD MUSEUM OF NATURAL HISTORY ZOOLOGY, VOL. IX. 





Family MICROPODID^E. Swifts. 

 See page 169. 



First primary, about half as long as third ; 

 feet, zygodactyle (toes, two in front, two be- 

 hind) ; outer tail feathers, very much shorter 

 than middle feathers. 



Family CUCULID^E. Cuckoos. 

 See page 161. 



Feet, syndactyle; toes, four, the middle and outer ones joined, 

 being fastened together for more than half their length. 



Family ALCEDINID^. Kingfishers. 



See page 162. 



First primary, much shorter than second, always less than three- 

 fourths as long as third; fourth, or fifth primary, longest; bill, stout 

 and strong; the nostrils, concealed by coarse, hair-like feathers; 

 outer tail feathers, shorter than middle feathers. 



f 



Family CORVIDvE. 



Subfamily GARRULIN^). Jays. 



See page 176. 



