101 
Paraguay, Bolivia , and Southern Brazil. 
of the upper and whole of the lower mandible yellow; legs 
and toes yellowish horn-coloured. 
50. Chrysomitris icterica. 
Chrysomitris icterica Sharpe, Cat. B. xii. p. 217 ; Arg. 
Orn. i. p. 64. 
«,£.<?? ad. Los Ynglases, Ajo. Sept. 14, 1908. 
Iris hazel; bill, feet, and toes black. 
c, d. ? ad. Los Ynglases, Ajo, Oct. 1908. 
<?,/, g. ? ad. Luiconia, Ajo. Nov. 20, 1908. 
h, i. $ ad. Los Ynglases, Ajo. Jan. 29, 1909. 
k, /. ad. „ 
m. S ad. „ 
n. S imm. ,, , 
o. <J ad. „ 
The Black-headed Siskin is extremely plentiful in the Ajo 
district, and usually frequents the Tala and other woods, where 
its delightful little song can be heard throughout the year. 
The nest is an extremely neat little cup-shaped structure 
composed of wool and thistle-down and lined with hair, and 
four eggs appear to be the complete clutch, though three are 
often found. It is placed in a bush or in the fork of a tree, 
and is not always easy to detect. 
The eggs vary somewhat in shape and colour : some are of 
a very delicate semitransparent blue, others are more opaque, 
and some are more or less spotted on the obtuse end. 
Feb. 1909. 
March 12, 1909. 
April 7, 1909. 
Feb. 14, 1910. 
51. Sycalis pelzelni. 
Sycalis pelzelni Sharpe, Cat. B. xii. p. 380; Arg. Orn. L 
p. 66. 
a. S ad. Los Ynglases, Ajo. 
b. $ young. „ „ 
c. S young. 
d , e. S ad- 
/. $ ad. 
g, h. $ ad. 
ij. <J ? ad. 
Sept. 17, 1908. 
Dec. 27, 1908. 
Jan. 18, 1909. 
Feb. 18, 1909. 
Mar. 10,1909. 
May 24, 1909. 
Dec o 28, 1909s 
>y 
