ATTICOKA. 347 



Young. Upper surface, band on upper breast, under wing- 

 coverts, and under tail-coverts earth-brown, somewhat darker on 

 the upper back, the brown band on the upper breast and under 

 tail-coverts have white edges to the feathers, and the marginal 

 under wing-coverts are also edged with white, throat and abdomer 

 white. 



The young described was collected on the Makauria River in 

 August 1910. 



This bird appears to be very local in British Guiana as, 

 although recorded by Schomburgk, it was not obtained by Whitely 

 on either of his journeys. 



Breeding-season. Unknown in British Guiana. 



Nest. Unrecorded in British Guiana. 



Eggs. Undescribed from British Guiana. 



Range in British Guiana. Ireng River, Itnribisi River, Arawai 

 River, Kamakabra River, Makauria River {McConnell collection). 



Extralimital Range. Brazil, Venezuela. 



Habits. Schomburgk states (Reis. Guian. iii. p. 672) that he 

 met with this bird in thousands near the waterfalls and whirlpools, 

 where they perched on the branches of leafless trees which had 

 fallen into the river. He did not observe it breeding. 



562. Atticora cyanoleuca. 



Half-belted Swallow. 



Hirundo cyanoleuca Vieill. N. Diet. d'Hist. Nat. xiv. p. 509, 1817 

 : (Paraguay). , ■ _ 



Atticora cyanoleuca Salvin, Ibis, 1885, p. 206 (Camaousa, Roraima, 

 3500 ft.) ; Sharpe, Cat. B. Brit. Mus. x. pp. 186, 634, 1885 (Cama- 

 cusa, Eoraima) ; Brabourne & Chubb, B. S. Ampr. i. p. 328, no. 3342, . 

 1912. 



Adult male. Crown of head, hind-neck, back, lesser upper 

 wing-coverts, scapulars, and upper tail-coverts glossy steel-blue ; 

 median and greater upper wing-coverts, bastard-wing, primary- 

 coverts, flight-quills, and tail soot-black ; throat, breast, and 

 abdomen white ; under tail-coverts blackish with steel-blue tips to 

 the feathers ; sides of the body smoke-brown like the axillaries, 

 under wing-coverts, under surface of flight-quills, and lower 

 aspect of the tail ; the marginal under wing-coverts fringed with 

 white. 



