CAPRBIULGUS. 369 



Breed'iiuj-season. Unknown. 

 Nest. Unrecorded. 

 Eggs. Undescribed. 



Range. C'onfined to British Guiana : Mount Roraima, 3500 ft. 

 {Whltely). 



Habits. Unrecorded. 



243. Caprimiilg"us nigrescens. 



Dark ^'ight-Hawk. 



Caprinnilr/us nigrescens Cab. in Sohomb. Reis. Guian. iii. p. 710, 1S4S 

 (British Guiana) ; Hartert, Cat. B. Brit. Mas. x\'i. p. 572, 1892 

 (Reti-eat River) ; Brabourne & Chubh, B. S. Amer. i. p. 102, no. 904, 

 1912. 



Antrostomus nigrescens Salvin, Ibis, 1885, p. 438 (B.irtica Grove, 

 Camacusa). 



Adult fe nude. Upper and under surface blackish with rufous or 

 whitish spots and mottlings on the sides of the crown, npjier 

 wing-coverts, back, and short scapulars ; long scapulars mottled 

 wath whitish ; tail banded with mottled grey, which becomes 

 almost obsolete on the outer feathers ; primary and secondary 

 flio-ht-quills uniform blackish brown ; throat and breast similar to 

 the upper surface with a white band across the former ; abdomen 

 and under tail-coverts narrowly barred with btiflf"; under wing- 

 coverts and lower aspect of quills uniform sooty-brown. 



Total length 170 mm., culmen 8, wing 13G, tail 88, tarsus 13. 



The female from which the description is taken was collected at 

 Bartica. 



Adult male. Similar to the adult female, but differs in having a 

 white spot on the iimer web of the third and fourth primary- 

 quills and white tips to the two penultimate tail-feathers. Wing 

 1.50 mm. 



The male described was collected on the Warema River. 



The young is chestnut-brown above, mottled with black and 

 more or less with white on the scapulars and sides of the crown. 

 The under surface is everywhere barred with buffy-white. 



Breeding-season. Unknown in British Guiana. 



Nest. A shallow hollow in the ground under low bushes 

 (^Schomhurgl-). 



Eqgs. Tiie eggs are two in number (Schonihurgk). 



Range in British Guiana. Mount Roraima, Ruribisi River, 

 Supenaam River, Bartica, Kamakabra River, Bonasika Itiver, 



2b 



