Bulletin - United States National Museum - si-pddr - Smithsonian ...

148 BULLETIN 133, UNITED STATES NATIONAL MUSEUM
previously in Aroentina near Concepcion, Tucuman, on March 4,
1918," but the present record is the farthest sonth at which the
spotted sandpiper has been Imown. (The statement in El Hornero
that my specimen was secured at Cape San Antonio was due to a
misunderstanding on the part of Doctor Dabbene.)
TRINGA SOLITARIA CINNAMOMEA (Brewster)
Totamis solitarius clnnamomeus Brewster, Auk, vol. 7, 1890, p. 377. (San
Jose del Cabo, Lower California.)
As has been said in the account under Totanus melanoleucus, the
solitary sandpiper belongs with the wood sandpiper in Trlnga, a
genus of tringine sandpipers characterized by a tAvo-notched meta-
sternum, with the nasal groove extended for two-thirds or less of
the maxilla.
The solitary sandpiper in its southward migration reached Formosa,
Formosa, on the Rio Paraguay, on August 23, 1920, when
three were found on overflowed ground along a slough tributary to
the Paraguay. The birds were silent and walked so quietly along
the borders of the pools, often where overhung by brush or grass, that
they might easily have been overlooked. An adult female that I
shot was thin in flesh, and from other indications I was certain that
these birds had just arrived. At Kilometer 80, west of Puerto Pi-
nasco, Paragua}^, solitary sandpipers passed southward, stopping
occasionally at the lagoons, from September 6 to 21, and on September
24 and 25 a number were seen at Laguna Wall at a point 200
kilometers west of the river. The species was not recorded during
spring and summer on the pampas, and was not seen again until
December 3, when a male was killed on the Rio Negro, near General
Roca, Rio Negro, where it was found amid scattered willows on
a muddy shore from which water had recently receded. Apparently
this is the farthest south from which the species has been recorded.
At Lazcano, Rocha, from February 2 to 8, solitary sandpipers were
in migration in small numbers and were traveling northeastward
along the Rio Cebollati toward the coast. A female was taken Feb-
ruary 7. One was recorded at Rio Negro, Uruguay, on February 17,
and one was seen at a roadside pool near General Campos, in Entre
Rios, Argentina, on February 23. Another was noted at 2.5 de Mayo,
Buenos Aires, March 2. During the night of April 5 at Tucuman,
Tucuman, the call of this species was heard frequently among the
notes from the great flight of waders that passed northward over
the city. At this southern end of their range the solitary sandpiper
frequents the margins of shallow pools as in the north, often in
localities unsought by other waders. I found it far from common.
" El Hornero, vol. 2, December, 1920, p. 124.