CYPSELID^. — XXXVIII. 99 



partly feathered; toes slightly webbed at base, the hind 

 toe somewhat elevated. Genera fourteen; species one 

 hundred or more, widely diffused; chiefly insectivorous. 

 * Tail rounded; rictal bristles very long. . Caprimulgus, 1. 

 ** Tail forked ; rictal bristles inconspicuous. . Chordeiles, 3. 



/. CAPRIMULGUS, (L.) Whippoorwills. 



1. C. vociferus, (Wils.) Whippoorwill. Night 

 Jar. Grayish, much variegated; pectoral bar and ends 

 of outer tail feathers white {^) or tawny ($); rictal 

 bristles unbranched; L. 10; W. 6; T. 5. E. U. S., 

 abundant, nocturnal; noted for its "solemn and pro- 

 phetic" cry. 



2. C. carolinensis, (Gm.) Chuckwill's Widow. 

 More reddish; rictal bristles with lateral filaments; L. 

 12; W. 9; T. 6^. Southern, N. to Ills. {JSTelson.) 



2. CHORDEILES, Swainson. Night Hawks. 



1. C. popetue, (V.) Bd. Night Hawk. Bull 

 Bat. Blackish, variegated; a large wing spot, bar 

 across tail, and V-shaped blotch on throat — white in ^, 

 tawny or obscure in $; L. 9|-; W. 8; T. 5. U. S.; 

 abundant. 



FAMILY XXXVIII.— CYPSELID^. 



{The Swifts.) 

 Bill fissirostral, as in CaprimidgidcB and Hirundinidce. 

 Wings very long, thin and pointed; secondaries very 

 short. Feet small, weak; hind toe often elevated or 

 otherwise turned; toes completely cleft. No rictal 

 bristles. Tail feathers 10; plumage compact. In most 

 species the salivary glands are highly developed, and 

 their secretion is used as a glue in the construction of 



