318 Mr. C. H. B. Grant on Birds collected in Argentina, 
The young bird is slightly duller than the adults, especially 
on the head, and the inner secondaries are tipped with dark 
buff. The base of the bill is not flesh-coloured. 
The Bronze Humming-bird appears to be a winter 
visitor to the Aj6 district, as it is absent during October, 
November, and December, and does not breed there. 
When I first arrived I was told by residents that the 
Glittering Humming-bird often remained throughout the 
year ; but there is no doubt than this species had been 
confounded with it. 
Miss Runnacles “ observed it in every month throughout 
the winter of 1909,” and it disappeared soon after I arrived. 
139. Chlorostilbon splendidus. 
Chlorustilbon splendidus Arg. Orn. ii. p. 9 ; Salv. Cat. B. 
xvi. p. 49. 
a. £ ad. Los Ynglases, Ajo. 
b. <J ad. „ „ 
c, d. $ ad. 
e. ? young. „ „ 
f, 9, h. ¥ ad. „ „ 
i. ? young. „ „ 
j. £ ad. Arjerichi, Paraguay. Aug. 9, 1909. 
k. £ ad. Villa Franca, Paraguay. Aug. 10, 1909. 
l. £ ad. Near Santa Elena, N. Argentina. Nov. 15. 
1909. 
Sept. 27, 1908. 
Oct. 28, 1908. 
Nov. 9-17, 1908. 
Dec. 14, 1908. 
Jan. 6-28, 1909. 
Apr. 17, 1909. 
Irides dark brown ; bill tomato-red, tip black ; legs and 
toes black. In the female the base of the bill is not quite 
so bright. 
The young female differs from the adult in being rather 
duller above, while the feathers have a more “ woolly” ap¬ 
pearance; most of the feathers, especially on the rump and 
nape, are edged with rufous, and they lack the colour at 
the base of the bill. 
One of the specimens is green above and the other bronzy 
green. 
The Glittering Humming-bird made its first appearance 
at Los Ynglases on Sept. 10th. 
