coccYzus. 4:37 



207. Coccyzus melacoryphus. 

 Black-billed Cuckoo. 



Cocci/zus tnelacoryphus Vieill. X. Diet. d'Hist. Xat. viii. p. 271, 1S17 

 (Pai-asruav) ; i^raboume &. Chubb, B. S. Auier. i. p. 151, no. 1475, 

 1912." 



Coccygus melanocorypTius Salvin, Ibis, 18S6. p. 6-1 (Bartica Grove, 

 Yuruani River). 



Coccyzus melanocoryphus Shelley, Cat. B. Brit. Mus. six. p. 307, 1S91. 



Adult male. Head dark slate-grey; back and wings earth- 

 brown, edges of primary and secondary quills inclining lo rufous, 

 more broadly on the inner webs : middle tail-feathers bronze, 

 outer feathers darker and tipped with dull white, which extends 

 down the edge of the outer leather ; eyelids and a spot behind 

 the eye black; hinder face and sides of neck ash-grey; entire 

 under surface rufesoent buff, somewhat ])aler on the abdomen. 



Total length '245 mm., culmen 21, wing 111, tail 132, tarsus 25. 



The male from which the description is taken was collected on 

 the Supenaam River. 



Adult female. Is like the adult male in the colour of the 

 plumage, but rather larger. Wing 122 mm. 



The female from which the description is taken is in the 

 British Museum and was collected by AVhitely on the Yuruani 

 Kiver, 2700 ft.^ in June 1883 — Salvin-Goilinan cullection. 



Breeding-season. Unknown in British Gui;iua. 



2iest. Unrecorded in British Guiana. 



E'jgs. Undescribed from British Guiana. 



Range in British Guiana. Upper Takutu Mountains, Ituribisi - 

 River, Supenaam River, Makauria River, Abary River, Mazaruni 

 River (JMcConnell collection) ; Bartica, Yuruani River ( Wliitely). 



Kxtralimital Range. Trinidad, Venezuela, Ecuador, Peru, 

 Eastern Brazil, Paraguay, Argentina. 



IJahits. Unrecorded in British Guiana. 



298. Coccyzus americanus. 



Yellow-billed Cuckoo. 



Cuculus americanus Linn. Syst. Xat. 10th ed. i. p. Ill, 175S (Carolina). 

 Coccyzus americanus Shelley, Cat. B. Brit. Mus. xix. p. Su8, 1891 ; 

 Brabourne & Chubb, B. S. Anier. i. p. 151. no. i-i7G, 1912. 



