120 CASSIN'S MONOGRAPH OF THE GENEEA 



Form. — Bristles of the upper mandible compound, each being ciliated. General 

 form very broad and robust ; wing long, with the second quill longest ; legs short ; 

 tail ample. The largest known species of this genus. 



Dimensions. — Total length (of skin) from tip of bill to end of tail about 12 inches; 

 wing 81 ; tail 5| inches. 



Colors. — 5 Entire superior parts dark brown, minutely dotted with reddish fulvous 

 and with many of the feathers having large longitudinal marks of black. Inferior 

 parts similar generally to the superior, but more minutely marked with black and 

 with rounded fulvous spots ; throat with an uninterrupted white collar before and 

 fulvous behind. Quills with irregular alternate bars of reddish fulvous and brownish 

 black. Central tail feathers reddish fulvous, mottled, and with irregular bars of 

 black ; external feathers with their ends largely tipped with silky white on the inner 

 and reddish fulvous on their outer webs. 



9 Very similar to the male, but without white on the external tail feathers. 



Hah. — The southern portion of North America. 



Obs. — This fine species, which is the largest of its genus, is peculiar for having 

 the bristles of the mandible ciliated, or compound and very rigid. It is abundant in 

 the Southern and South-western States of this confederacy, and is figured with great 

 accuracy by both Wilson and Audubon. 



2, Antrostomus rufus. (Bodd.) Buffon, PI, Enl. 735. 



Caprimulgus rufus. Boddaert, Tab. PL Enl. p. 46. (1783.) 

 Caprimulgus rufus. Gmelin, Syst. Nat. ii, p. 1030. (1788.) 



Form. — Bristles of the upper mandible simple, rigid. General form very similar 

 to the preceding, but smaller : wing shorter, second quill longest, four outer primaries 

 serrated on their exposed edges, least distinctly on the first. Legs short ; tail ample. 



Dimensions. — Total length of skin from tip of bill to end of tail about 11 inches; 

 wing 11 ; tail 5| inches. 



Colors. — 5 Generally very similar to those of A. carolinensis, but with the reddish 

 fulvous more observable and assuming on the neck behind, the appearance of 

 transverse lines on every feather, the longitudinal black marks of the head and 

 scapulars larger. Inferior surface of the body deep brown, with numerous transverse 

 lines and bars of light reddish brown or snuff color, which predominate on the 

 abdomen and under tail coverts. 



Tail of the same general color as the body, with the external feathers largely tipped 

 with white on their inner and part of their outer webs, and edged exteriorly with 

 reddish fulvous mottled with brown. 



? unknown. 



Hah. — South America? 



Ohs.—X species nearly related to A. carolinensis, but is quite different. The only 



