332 Mr. C. H. B. Grant on Birds collected in Argentina, 
blackish, and the feathers of the belly and thighs, especially 
the latter, barred with the same colour, as also is the rump. 
This bird was always observed sitting in the trees over¬ 
hanging water, though I never saw it catch anything. 
182. Geranoaetus melanoleucus. 
Buteo melanoleucus Sharpe, Cat. B. i. p. 168. 
Geranoaetus melanoleucus Arg. Orn. ii. p. 64. 
a, b. ? ad. & imm. Los Ynglases, Ajo. Sept. 15, 
1908. 
c. $ . Los Ynglases, Ajo. Feb. 25, 1909. 
Quite an uncommon visitor to the Ajo district and usually 
frequenting the tall eucalyptus trees, 
183. Gelianospizias c^erulescens. 
Geranospizias ccerulescens Sharpe, Cat. B. i. p. 81 ; Arg. 
Orn. ii. p. 67. 
a. ? ad. Riaclio Ancho, N. Argentine. Aug. 1, 1909. 
Irides yellow ; bill black, slaty at base of both mandibles ; 
legs and toes orange. 
184. Falco peregrines. 
Falco communis Sharpe, Cat. B. i. p. 381. 
Falco peregrinus Arg. Orn. ii. p. 67. 
a. A ad. Los Ynglases, Ajo. Dec. 20, 1909. 
Irides deep brown; orbits, cere, legs, and toes bright 
lemon-chrome ; bill dark slate-coloured at tip, greenish 
yellow at base. 
185. Falco fusco-c^erulescens. 
Falco fusco-ccerulescens Sharpe, Cat. B. i. p. 400; Arg. 
Orn. ii. p. 69. 
This Hawk is not represented in the collections made by 
me; but I have an adult female taken on the 27th of June, 
1909, at Ajo, from Miss Runnacles* collection. This 
specimen is very much worn and new feathers are appearing 
on the nape and mantle. 
186. Tinnunculus cinnamominus. 
Cerchneis cinnamominus Sharpe, Cat. B. i. p. 439. 
Tinnunculus cinnamominus Arg. Orn. ii. p. 69. 
