157b. 
157c. 
*157d. 
157e. 
92 
Rupornis magnirostris occidua Bangs, Pr. 
Biol. Soc.,. Wash:, xxiv., p: 187 (1911). 
[Rio Tembopata, S.E.Peru, type in M.C.Z., 
Harvard. ] 
Peruvian Large-billed Hawk. 
Larger : wing g¢ 213-223 mm. ; above much 
browner grey than last, but paler than 
typical form ; no rufous on secondaries or 
tail; no buff on upper or under tail- 
coverts ; chest cinnamon rufous to grey 
tinged with rufous. 
Ruporms magnirosinis insidiatrix Bangs 
and Penard, Bull. M.C.Z.. hi., p. 36. 
(1918). [Sta. Marta, Col., type in M.C.Z., 
Harvard. | 
Colombian Large-billed Hawk. 
Wing ¢ 210-220, 9 230 mm.; above and 
chest slate grey (paler) ; wings as in typical 
form; below barred with dull rufous and 
white. 
Rupornis magnirostris griseicauda Ridgw., 
Pr BosaSoc: ONsH:, xVvis.)p. 169, ero): 
[Rio Seco, Mexico, type in M.C.Z., Harvard] 
Mexican Large-billed Hawk. 
Wing ¢ 215-20, 2 240 mm. ; above much 
darker and browner, under parts and upper 
tail-coverts more rufous, the interspaces 
buff instead of white; tail with inter- 
spaces ashy. 
Rupornis magnirostris conspecta, Peters, 
Auk., xxv., p. 370 (1913). [San Ignacio.] 
Yucatan Large-billed Hawk. 
Peru 
Colombia. 
Venezuela 
(Merida). 
Mexico to 
Guatemala and 
N. Nicaragua. 
Yucatan 
Peninsula, and 
Brit. Honduras. 
