WHITE-BODIED SWALLOW. *J5 



Conger than the second, and the two outer tail- 

 feathers are narrowed to a point ; they extend near 

 ha]f an inch beyond the others, although they are a 

 quarter of an inch shorter than the wings. 



In regard to colour, the upper plumage is of a 

 deep glossy black reflecting steel-blue. In another 

 specimen we have seen, which was probably of a 

 different sex, this bluish gloss was tinged with green- 

 white, that upon the head and ears was inclined to 

 violet (this latter is in the Fort Pitt or Chatham 

 Museum). On the wings there is a large oval spot 

 of pure white near an inch and a quarter long, which 

 occupies part of the greater covers, lesser quills, and 

 tertials. The tail above appears entirely black, 

 but upon being expanded there is seen a broad 

 white band on the middle of the inner web of all 

 the lateral feathers. The whole of the under plu- 

 mage, from the chin to the tail-covers, is of a snowy 

 whiteness ; on each side the breast the black colour 

 of the back somewhat advances, as if about to form 

 a semicollar on that part ; bill and feet, black. 



Total length, 5 inches; bill, from the gape, 1^; 

 wings, 3 T % ; tail, from the base, 2 T % ; depth of the 

 fork, T 6 Q ; tarsus, / . 



