:]C)G BIRDS OF BRITISH GUIANA. 



found tills bird fairly common in low bush near the banks of the 

 rivers in virgin forest. It only flew for a short distance before 

 settling again. The "Macusis " call it T'lwima. 



240. Thermoclialcis rufioervix. 



RUFOUS-NAPED NiGHT-HaWK. 



Stenopsis ruficervix Sclatev, P. 2. S. 18G6, p. 140, pi. xiv. (Interior of 



New Granada); Salvin, Ibis, 1885. p. 439 (Roraima, 5000 ft.); 



Hartert, Cat. B. Brit. Mus. xvl. p. 584, 1892 ; Brabourne & Chubb, 



B. S. Amer. i. p. 101, no. 955, 1912. 

 Caprlmnlgus (lecussatus (nee Tsch.), Cab. in Seliomb. Reis. Guian. iii. 



]). 710, 1848. 



Adult male. General colour above black with ferruginous, grey, 

 or white spots and niottlings to the feathers ; a lerruginous 

 collar on the hind-neck ; bastard- wing and primary-coverts 

 blackish with ferruginous spots on the outer webs; primary- 

 quills dark brown with an incomplete white bar on the first, 

 second, and third feathers and an indication of a white spot on the 

 fourth, the remainder of the j)rimaries with small rufous spots on 

 both webs; the secondary-quills dark brown incompletely barred 

 with rufous on the outer weV)s and bufl'on the inner ones ; middle 

 tail-feathers dark brown with mottled-grey bars, the outer 

 feathers paler brown, the outer webs barred with rufous, with a 

 small white spot towards the base and a large one at the tip on 

 the inner webs, the outer webs mottled with rufous at the tips; 

 sides of the face and chin like the back ; a wliite patch across tlie 

 throat ; fore-neck blackish brown with ferruginous tips to the 

 feathers; breast and sides of the body dark brown barred and 

 tipjied witli wliite which fades into buff on the abdomen and 

 under tail-coverts; under wing-coverts similar to the fore-neck. 



Total length 240 mm., culmen IT), wing 17(3, tail 119, tarsus lo. 



Adult female. Differs from the adult male only in the absence 

 of tiie white baron the first three primary-quills, which is repre- 

 sented in the female b}^ a rufous spot on the outer web oidyof tlie 

 three outer primary-quills, and in the almost entire absence of 

 wbite in the taiL AVing 164 mm. 



This species is not represented in the jMcConnell collection, and 

 the descriptions of the male and female are taken from specimens 

 in the British Museum collected by Whitely at Mount Roraima, 

 5000 ft., on the 23rd of August, 1883 — Salvin-dodman collection. 



Breedinq-season. Unknown in British Guiana. 



