478 On Birds collected in Argentina , Paraguay, §c. 
In the district of Ajo, this Tinamou is not common, and 
is now almost entirely confined to the coast-belt. In the 
north, where it is more abundant, its clear whistling note is 
often heard. 
279. Nothura maculosa. 
Nothura maculosa Arg. Orn. ii. p. 211; Salvad. Cat. B. 
xxvii. p. 559. 
a. ? juv. Cape San Antonio. Dec. 20, 1908. 
b, c. d imm.; $ ad. Los Ynglases, Ajo. Sept. 14, 1908. 
d , e. d ad. ; $ imm. Los Ynglases, Ajo. Jan. 11-19, 
1909. 
/. $ ad. Los Ynglases, Ajo. Feb. 17, 1909. 
g. d ad. ,, „ Mar. 23, 1909. 
h, i, j. d imm. „ „ Apr. 21-28, 1909. 
k. $ ad. Monte Alto, Paraguay. Aug. 25, 1909. 
This is a very common bird in the pampas, but not so 
abundant in the north. 
Fam. Rheid^e. 
280. Rhea Americana. 
Rhea americana Salvad. Cat. B. xxvii. p. 578; Arg. Orn. 
ii. p. 216. 
a. d nestling. Luiconia, Ajo. Nov. 19, 1908. 
b. d ad. Los Ynglases, Ajo. May 27, 1909. 
c. d imm. Los Ynglases, Ajo. May 29, 1909. 
d. e. d ? imm. (heads only). Los Ynglases, Ajo. May 29, 
1909. 
The Rhea is almost gone from the Ajo district, but may 
still be found in the rough country along the coast, where 
I have seen as many as nineteen together. A few are more 
or less preserved in many of the estancias. 
The nest is usually placed in a thick patch of long grass, 
and the incubating male usually sits closely, rising with a 
rush and outspread wings from under the horse's nose. 
One nest that I visited contained nineteen newly-hatched 
chicks and two unfertile eggs, and it was from these that I 
obtained the nestling specimen. 
