*166a. 
167. 
167a. 
168. 
100 
with white; quills black; tail black with 
broad white tips (35 mm.) and white bases 
to outer feathers. 
Leucopternis albicollis occidentalis Salv. 
Ibis, 1876, p. 496. [Puna I.] 
Puna White-collared Hawk. 
Wing 2 338 mm.; similar, but rather 
smaller and with head plumbeous ; upper 
parts plumbeous instead of black; tail 
white with ‘narrow black sub-terminal 
band (70 mm.). 
Leucopternis ghiesbreghti ghiesbreghti (Du 
Bus), Esq. Zool., pl. 1 (1848). [Near Vera 
Cruz, Mexico.) 
Ghiesbreght’s Hawk. 
Wing ¢ 320-330, 2 360-385 mm. ; larger ; 
above and below white; tail with sub- 
terminal black band ; greater wing-coverts 
and outer secondaries black tipped with 
white, innermost (and sometimes all) 
secondaries white ; primaries chiefly black. 
Leucoplernis ghiesbreghti costaricensis W. 
Sclat., Bull) B:0:C., xxxix:, :p:.76 (1919): 
[Carillo, Costa Rica, type in B.M.] 
Wing ¢ 350 mm.; inner primaries and 
secondaries dusky black, crossed by narrow 
bars of dead black; the tips and inner 
edges white ; black tail band wider. 
Leucopternis polionota (G. R. Gray), Cat. 
Accip. Br. Mus., p. 17 (1844). [Nom. nud.): 
Kaup, Isis, 1847, p. 212. [S. America = 
Sao Paulo, Braz., type in Br. Mus.] 
Mantled Hawk. 
W. Ecuador, 
Colombia. 
S. Mexico to 
Guatemala 
(Vera Paz) and 
Honduras. 
Pacific slopes of 
Guatemala to 
Nicaragua, 
Costa Rica and 
Panama. 
S. Brazil. 
