1917 BIRDS OF THE SOUTHERN CALIFORNIA ISLANDS 49 
Probably a regular but not very common migrant. J. Grinnell and F. S. 
Daggett (1) observed two of this species flying over the Coronados, August 7, 
1902; Breninger (2) noted a few at San Clemente in February, 1903; C. B. Lin- 
ton (3) took a bird December 8, 1907, at Santa Cruz, and (MS) has also seen 
birds on San Nicolas. 
70. Squatarola squatarola (Linnaeus) 
BLACK-BELLIED PLOVER 
Squatarola helvetica (1) Baird, Brewer and Ridgway, Water Birds N. Am,. 1, 1884, p. 136. 
Squatarola squatarola (2) Breninger, Auk, xx1, 1904, p. 218. (3) Linton, Condor, x, 1908, 
p. 126. (4) Willett, Pac. Coast Avif., 7, 1912, p. 39. 
Rather common migrant at suitable localities. C. B. Linton (4) saw one 
of these birds in full summer plumage at San Nicolas Island, June 1, 1910, and 
G. F. Breninger (2) observed thousands on the shores of San Clemente in Febru- 
ary, 1903. J. G. Cooper (1) took a female on Catalina, November 1, 1861, now 
in the Museum of Vertebrate Zoology at Berkeley, and C. B. Linton (3) found it 
cemmon on Santa Cruz during November and December, 1907, large flocks being 
seen feeding on the mesas one half to one mile inland. 
(ale Oxyechus vociferus (Linnaeus) 
KOLLDEER 
Aegialitis vocifera (1) Linton, Condor, x, 1908, p. 126. 
Straggles to the islands in the winter. I saw a lone individual of this spe- 
cies, March 25, 1915, at a little pond on the top of San Clemente Island. C. B. 
Linton (WS) noted several on San Nicolas in January, and a number on Santa 
Cruz during November and December, 1907. 
12. Aegialitis semipalmata (Bonaparte) 
SEMIPALMATED PLOVER 
Aegialitis semipalmata (1) Mearns, Bull. U. S. Nat. Mus., tyr, 1907, p. 141. (2) Willett, 
Pac. Coast Avif., 7, 1912, p. 40. 
Evidently a rather rare winter straggler from the mainland. E. A. Mearns 
(1) took this species on San Clemente the latter part of August, 1894, and C. B. 
Linton (2) saw it at San Nicolas, April 18 and May 6, 1910. 
13. Aegialitis nivosa Cassin 
SNowy PLOVER 
Aegialitis nivosa (1) Grinnell, Pasadena Acad. Sci., 1, 1897, p. 26. (2) Linton, Condor, 
x, 1908, p. 88. (3) Linton, Condor, x, 1908, p. 126. (4) Willett, Pac. Coast Avif., 7, 
1912, p. 40. (5) Grinnell, Pac. Coast Avif., 11, 1915, p. 55. 
Found on most of the sandy beaches of the islands, where apparently breed- 
ing. ©. B. Linton (2) saw a flock of fifteen or twenty birds on San Clemente, 
October 15, 1907, and says (MS) that they breed on San Nicolas. He (3) also 
reported it as fairly common during the late fall of 1907 at Santa Cruz Island. 
O. W. Howard (4) has seen it at San Miguel during the summer months. 
