2 
Smaller, wing g 230, 2 255 mm. ; plumage 
paler grey. 
» 
Gen. XXXVI. RUPORNIS Kaup (1844). 
Type by orig. desig. Falco magnirostris Gmel. 
Feet and claws much smaller and weaker. Size 
rather 
S57. 
1572. 
smaller than Asturina. 
Rupornis magmrostris magnirostris (Gmel.), 
S.N., 1., p. 282 (1788). [Cayenne.] 
Large-billed Hawk. 
Wing ¢ 208-220, 2 220-226 mm.; above 
and chest dark brownish slate, head darker ; 
tail ashy with 3 broad bands of black ; 
primaries rufous including outer webs, 
barred with black, the tips black ; secon- 
daries, except outermost ones, ashy barred 
with black; below white, barred with 
rufous or rufous ashy (g more rufous 
below than 9). 
Rupornis magnirostris ecuadoriensis subsp. 
nov. [2 Vaquerot, N. Ecuador, Sept. 20th, 
1901, in coll. H. Kirke Swann. ] 
Ecuador Large-billed Hawk. 
Wing ¢ 205, 9 220 mm. ; nearest to R. m. 
vuficauda ; above much paler and greyer 
than typical form, but upper tail-coverts 
with a tinge of buff and tail with interspaces 
darker and tinged with rufous ; below more 
rufous and with a buffish tinge ; quills more 
broadly banded with black, the secondaries 
more rufous on inner webs. 
Guiana, 
E. Venezuela, 
Lesser Antilles. 
N: & We 
Ecuador. 
