ASTDRINA. — RUP0RNI3. 239 



estates and low lands o£ the various tidal creeks. These birds 

 have much o£ the habits of the foregoing species (Asti(7'ina 

 magnirostris), but they are much larger, being from 16-18 inches 

 in length, much less numerous, and thus correspondingly less 

 destructive. They are often to be observed hovering in the neigh- 

 bourhood of the poultry-yards in the country districts, though 

 generally high up in the air, and out of range." 



Genus RUPORNIS Kaup. 



IRiipornis Kaup, Classif. Saug. u. Yogel, p. 120, 1814. Type H. magni- 

 rostris (Gmel.). 



This genus is distinguished by its smaller-sized birds with small 

 feet and the wings, when closed, reaching nearly to the tip of 

 the tail, and, moreover, by the earth-brown and rufous coloration. 



153. Rupornis magnirostris. 



Large-billed Hawk. 



Falco ynagnirostris Gmel. Syst. Nat. i. p. 282, 1788 (Cayenne^. 



JRupornis magnirostris Cab. in Schomb. Reis. Guian. iii. p. 737, 1818; 

 Brabourne & Chubb, B. S. Amer. i. p. 68, no. 625, 1912. 



Asticrina magnirostris Sharpe, Cat. B. Brit. Mas. i. p. 207, 1874 

 (Demerara) ; Salvia, Ibis, 1886, p. 72 (Bartica Grove, Camacusa, 

 Atixpurau River) ; W. L. Sclater, Ibis, 1887, p. 318 (IMaecasseema, 

 Pomeroon River) : Lloyd Price, Timebri (2) v. p. 67, 1891 (nesting- 

 habits) ; Quelcb, t. c. p. 105 (Georgetown) ; id. Timebri (2) vi. 

 p. 120, 1892 (food) ; id. t. c. p. 151 (habits). 



"Grey Chicken-Hawk" or "Great-billed Buzzard" {Quek-h). 



Adult. Head, hind-neck, sides of face, and tliroat slalc-grey ; 

 paler and more ash-grey on the breast, upper wing-covert.s, 

 scapulars, and back ; primary-coverts and quills bright chestnut, 

 barred and edged with dark brown and white on the inner webs ; 

 upper tail-coverts dark brown barred and edged with white ; tail 

 black, banded and tipped with grey or smoky-brown ; lower breast, 

 sides of body, abdomen, and thighs white barred Avith chestnut- 

 brown ; under tail-coverts white with a few dark spots and shaft- 

 lines; axillarics and under wing-coverts white, narrowly barred 

 with pale brown. 



Total length 340 mm., culmon 28, wing 221, (ail 1 13, tarsus 03, 

 middle toe and claw 40. 



The specimen from which tlie de-^crij tion is taken was collected 

 (III tlie l)onasika Hiver. 



