AVES CAPRIMULGID^. 727 



Description. — Adult male, Colin. British Museum, Chupat, Patagonia, 

 H. Durnford. Total length, 9.00 inches ; wing, 6.30 ; tail, 4.50 ; tarsus, .75. 

 Above gray with a silvery cast, mottled with black and fulvous, a series 

 of black spots along the center of the crown, a rusty buff collar on the hind 

 neck ; upper wing coverts like the back, remiges deep brown, nearly black ; 

 first four primaries crossed by a broad bar of white, the rest spotted through- 

 out with dull reddish brown, as are the first four near their bases, secondar- 

 ies similar ; central tail feathers like the back, the next pair with a large white 

 mark on the terminal part of the inner web, increasing on the others until 

 the outermost are chiefly white; lower parts dirty fulvous, with a white 

 collar with fulvous or buffy border across the lower throat ; rest of under 

 parts transversely barred with narrow rather irregular brown markings ; 

 feet and bill blackish. 



Geogniphical Range. — Bolivia and the interior of Brazil, Argentina and 

 Chili and Patagonia to about 46° south latitude. 



That part of Patagonia where this goatsucker has been recorded was 

 not visited by the Princeton Explorers, nor did their field work extend the 

 known range of the bird. Darwin, under the name of Caprimnlgus bifas- 

 ciatns, records the occurrence of the bird in the Chilian Andes at an ele- 

 vation of 6,000 feet above the sea, on the Bell of Quillota. He says that 

 it has a gentle plaintive cry and that it is regarded with superstitious 

 dread by many of the inhabitants. Mr. Gould observes : ^ "This species 

 has a strong resemblance, at the first glance, with the Caprimulgns Euro- 

 peans, but may be readily distinguished by its shorter wing, more length- 

 ened tarsi, by a conspicuous white band across the base of the tail, and by 

 all these feathers, except the two middle ones, having another band near 

 the tip." 



Suborder TROCHILI. 



Sharpe, Classif. Bds. p. 81 (1891); Salvin, Cat. Bds. Brit. Mus. xvi. p. 27 

 (1892) ; Sharpe, Hand-List Bds. ii. p. 97 (1900). 



Family Trochilid^e. 



Hartert, Tierreich, Lief. ix. pp. 1-230 (1900); Sharpe, Hand-List Bds. ii. 

 p. 97 (1900). 



'Voyage of Beagle, Birds, p. 37. 



