422 BIRDS OF BRITISH GUIANA. 



Cyanocompsa roihschildi Brabourne & Cliubb, B. S. Amer. i. p. 362, 



no. 3713, 1912. 

 Cyanocompsa cyanea (nee Linn.) Beebe, Tropical Wild Life in British 



Guiana, p. 136, 1917 (Bartica). 



" Brazilian Blue Grosbeak " (Beehe), 



Adult male. General colour both on the upper and under 

 surface dark blue ; inner webs of flight-quills blackish, inclining 

 to brown towards the tips ; tail black slightly fringed with blue 

 on the outer webs ; forehead and feathers over the eye brighter 

 and paler blue ; inner under wing-coverts and quill-liiiing dark 

 brown ; lower aspect of tail black. 



Total length 155 mm., exposed culmen 16, wing 83, tail 58, 

 tarsus 20. 



Adult female. General colour above and below smoke-brown, 

 darker and inclining to black on the inner webs of the flight-quills 

 and tail-feathers. Wing 73 mm. 



The male and female described were collected on the Supenaam 

 River in 1911. 



A young bird, collected at Bartica in 1911, not fully fledged 

 on the top of the head, is du.slty blackish brown with a few smoke- 

 brown leathers on the abdomen, the upper surface also tinged 

 with smoke-brown. 



An immature male from the Ituribisi River has almost attained 

 iht) dark bine jjlumage, but there are still the remains of smoke- 

 brown feathers on the back and abdomen. 



Breeding-season. Unknown in British Guiana. 



Nest. Unrecorded in British Guiana. 



Eggs. Undescribed from British Guiana. 



Range in British, Guiana. Ituribisi River, Supenaam River, 

 Bartica, Kamakabra River, Manarika River, Makauria River, 

 Arawai River, Great Falls Demerara River (McConnell collec- 

 tion) ; Karaarang River, Kamakusa, Bartica ( Whitely). 



Extralimital Range. Surinam {Penard), North Brazil, Vene- 

 zuela, Colombia. 



Habits. Unrecorded in British Guiana. 



