55i BIRBS OF BRITISH GUIANA. 



698. Ostinops viridis. 



Great Green Cacique. 



briolus viridis P. L. S. Muller, Syst. Nat. Suppl. p. 87, 1776 

 • (Cayenne). - • 



Cassicus viridis Cab. in Schomb. Reis. Guian. iii. p. 680, 1848. 



Ostinops viridis Salvin, Ibis, 1885, p. 217 (Bartica Grove, MerumS 

 Mountains, Camacusa, Roraima, 3000 ft.) ; Sclater, Cat. B. Mus. xi. 

 p. 316, 1886 (Roraima, Camacusa,^ Bartica Grove) ; Quelch; 

 Timehri (2) iv. p. 334, 1890 (Berbice River) ; Beebe, Cur Search 

 for a Wilderness, p. 201, 1910 (Hoorie) ; Brabourne & Chubb, 

 B. S. Amer. i. p. 432, no. 4446, 1912 ; Beebe, Tropical Wild Life 

 in British Guiana, p. 187, 1907 (Bartica). 



" Green Bunyas " (Quelch) . 



Advlt male. General colour of both the itpper and under parts 

 yellowish green, including the head and neck all rounds back, 

 upper wing-coverts, breast, abdomen, and under wing-coverts; 

 bastard-wing, primary-coverts, and flight-quills black with 

 bronze-green outer margins to the secondaries ; lower back, 

 rump, short upper tail-coverts, flanks, thighs, and under tail- 

 coverts dark chestnut, the upper wing-coverts are irregularly 

 marked with the same colour, but somewhat paler ; long upper 

 tail-coverts bronze-green like the middle tail-feathers, the latter 

 blackish along the shafts ; remainder of tail bright yellow both 

 above and below. 



Total length 450 mm., culmeii 68, wing- 260,. tail 173, 

 tarsus 47, middle toe and claw 47. 



The specimen from which the description is taken was collected 

 on the Ituribisi River in October 1908. 



Adult female. Similar in colour of plumage to the adult male, 

 but smaller in measurements. 



' Total length 390 mm., culmen 59, wing 195, tail 145, tarsus 44, 

 middle toe and claw 44. 



The female described was collected on the Demerara River. 

 ' Breeding-season. Unknown in British Guiana. 



Nest. See Beebe, infra, p. 553. 



Eggs. Undescribed from British Guiana. 



Range in British. Guiana. Upper Takutu Mountains, Ituribisi 

 Eiver^ Demerara River {McCormell coUectioii) ; Mount Roraima, 

 Kamarang River, Bartica ( Wldtehj) ; Upper . Berbice River 

 {^Quelcli). 



