466 Mr. C. H. B. Grant on Birds collected in Argentina, 
of us. On Sept. 9th, at Colonia Risso, a clutch of three eggs 
was taken, the nest being a mere hollow in the open sand and 
in close proximity to the nests of Phaethusa magnirostris 
and Rhynchops melanura. The eggs agree with a specimen 
in the British Museum from Brazil, but are perhaps very 
slightly paler in the ground-colour. 
246. Oreophilus ruficollis. 
Oreophilus ruficollis Arg. Orn. ii. p. 174; Sharpe, Cat. B. 
xxiv. p. 123. 
a, b. $ $ ad. Luiconia, Ajo. Apr. 29, 1909. 
c, d. $ ad. Los Ynglases, Ajo. May 24, 1909. 
A common species during the winter months in this 
district, where it frequents the open grass-lands in flocks. 
247. H^ematopus palliatus. 
Hcematopuspalliatus Arg. Orn. ii. p. 176 ; Sharpe, Cat. B. 
xxiv. p. 114. 
a. <$ ad. Tuyu, Ajo. Nov. 10, 1908. 
b. S a d- Cape San Antonio. Dec. 18, 1908. 
c. S ad. Tuyu, Ajo. Jan. 1, 1909. 
d. ? ad. „ „ Apr. 11, 1909. 
These specimens agree exactly with those in the British 
Museum from more northern localities. 
This Oyster-catcher is common and resident on the 
sea-coast, where it breeds on the sand-dunes. It has a clear 
loud call and is by no means wild, especially when nesting. 
The nest is a mere hollow scraped in the sand in sheltered 
spots on the sand-dunes, and I have never taken more than 
two eggs as a clutch. 
Fam. Thinocorim. 
248. Thinocorys rumicivorus. 
Thinocorus rumicivorus Arg. Orn. ii. p. 176 ; Sharpe, Cat. 
B. xxiv. p. 719. 
a, b. ? ad. Luiconia, Ajo. Apr. 29, 1909. 
Irides dark horn-coloured ; bill ashy, nostrils and tip dark 
horn-coloured ; legs and toes dull greenish yellow. 
