354 BIRDS OF BRITISH GUIANA. 



with pale inner edges to the hist, some of the upper wing-coverts 

 and innermost secondaries marked with blackish towards the base, 

 which sometimes assume the form of bars ; tail-feathers blackish, 

 irregularly marked with white on the aj)ical portion ; a supraloral 

 streak which extends over the eye and along the sides of the 

 crown wdiite like the chin, throat, breast, abdomen, under tail- 

 coverts, axillaries, and under wing-coverts, the long under 

 tail-coverts havino- lilack shaft-lines ; under surface of flioht- 

 quills brown with paler inner edges : lower aspect of tail blackish, 

 rather extensively )narked wiih wdiite on the apical portion. 



Total length 215 mm., exposed culmen 24, wing 85, tail 78, 

 tarsus 28. 



The specimen from which the description is taken was collected 

 on the Takutu River in 1007, 



Breeding-season. Uidcnown in British Guiana. 



Nest. The nest is built among bushes or in small trees on the 

 Savannas {Schomhnrgk) . 



Eggs. Undescribed from British Guiana. 



Range in British Guiana. Takutu Kiver and Upper Takutu 

 Mountains [McConnell collection.) 



Extralimital Range. Venezuela, North Brazil. 



Habits. In regard to this species Schomburgk writes (Reis. 

 Guian. iii. p. 674) : — This shy bird is an inhabitant of the Savaimas 

 only, where it roams about in pairs, settling on the low Curatella- 

 trees and the solitary growing bushes. It is a most agile bird and 

 always on the move. It was a long time before I could secure 

 a specimen, for as soon as it sees a suspicious looking object, it 

 immediately utters a grating noise. The nest is built amono- 

 bushes or in small trees on the Savannas. Its food consists 

 chiefly of insects. 



Genus THRYOPHILUS Bti 



aird 



Thryopliiliis Baird, Review Amer. B. p. 127, lS(j4. Type T. rufalhvs 

 (Lafr.). 



Pig. 137. — To illustrate the formation of the head and bilL 

 The species included in this genus are modium-.-jized ^^ reus. 



