HYDROPSALIS AND ANTROSTOMUS. 115 



Excellent figures of both male and female are given by Temminck, in Planches 

 coloriees 157 and 158. 



2. Hydropsalis limbatcs. Cassin, Proc. Acad, Philada. iv. p. 236. (Oct., 1849.) 

 Hydropsalis creagra. Bonaparte, Conspectus Avium, p. 58. (1850.) ? 



PI. 13. (Section of external tail feathers.) 



Form. — 6 Wings long, pointed, first primary longest, two external feathers of 

 the tail very long, others graduated, v^^ith the middle feathers shortest, outer webs of 

 external tail feathers very narrow. 



Dimensions. — Total length of skin from tip of bill to end of external tail feathers 

 about 30 inches ; wing 9 ; tail to end of external feathers 22 inches. 



Colors. — 6 adult? Upper surface of the head, body and wing coverts brownish 

 black, spotted and sparingly lined with pale fulvous, the latter with rounded spots at 

 their points of the same color. Superciliary region grayish white, every feather 

 having narrow irregular lines of black. 



Neck with a collar of bright fulvous behind and white before. Scapulars with 

 their external webs black, with a few curved lines of fulvous remote from the tip, 

 which is broadly margined with black, internal webs of scapulars nearly white, 

 irregularly striped and spotted with black, other scapulars nearly black, with pale 

 fulvous margins externally. Quills brownish black, having on their internal webs 

 four or five narrow transverse lines of pale yellowish white conspicuous when viewed 

 from below, and on their external webs (except the first) several rounded or irregular 

 shaped spots of the same color, three first primaries on their outer webs with slight 

 margins of dull white, secondaries tipped with dull white. 



Chin, breast and belly irregularly mixed with brownish black and pale yellowish 

 white, the latter color assuming on the breast the form of semicircular spots at the 

 tips of the feathers, and the former (black) forming irregular narrow bands on the 

 flanks and abdomen, ventral region and under tail coverts paler. 



First three tail feathers throughout their whole length with their outer webs and 

 about two-thirds of their inner webs brownish black, with a few fulvous spots near 

 the base, other portion of the inner webs being broad, internal margins of these 

 feathers white ; fourth and fifth tail feathers with similar colors but more broadly 

 bordered with white, which as well as on the third is spotted with brownish. 



5 young? Tail deeply emarginate but not excessively long ; total length of skin 

 about 12 inches; colors of the plumage much resembling those of the adult, but with 

 the tail uniformly black, with irregular transverse bands of pale reddish on both webs 

 of the feathers. These bands are more or less mottled with black, and are broadest 

 and well defined towards the base of the tail. 



Hah. — South America. 



