COLLARED PRATINCOLE. 237 



black : the outer feather on each side as long again as those 

 in the middle ; the chin white ; the throat pale huif, with a 

 crescentic line of black ascending to each eye ; breast 

 brownish-buff; belly, thighs, and under tail-coverts, huffish- 

 white ; axillaries and under wing-coverts ruddy chestnut ; 

 the legs reddish purple-brown. 



In the young bird the clove-brown feathers of the Jaack, 

 and the Aving-coverts, secondaries and tertials, have pale 

 rufous margins ; the tail-feathers are shorter, and much 

 less forked ; throat pale brown, the crescentic collar indi- 

 cated by dark brown spots ; breast varied with two shades 

 of brown ; belly, and under surface of the body, and tail- 

 feathers, greyish-white. 



Females resemble the males. The whole length of an 

 adult bird is ten and a half inches. From the carpal joint 

 to the end of the first quill-feather, seven and a half inches. 



The outline below represents the breast-bone of the 

 Pratincole, and, in the double emargination on each side of 

 the keel, it will be found to resemble the breast-bones of the 

 Bustards and Plovers. 



