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) lias also seen 

 birds on San Nicolas. 



70. Squatarola squatarola (Linnaeus) 



Black-bellied Plover 



Squatarola helvetica (1) Baird, Brewer and Rldgway, Water Birds N. Am,, i, 1884, p. 136. 

 Squatarola squatarola (2) Breninger, Auk, xxi, 1904, p. 218. (3) Linton, Condor, x, 1908, 

 p. 126. (//) 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, 1908. 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 (5) found it 

 common on Santa Cruz during November and December, 1907, large flocks being 

 seen feeding on the mesas one half to one mile inland. 



71. Oxyechus vociferus (Linnaeus) 



KiLLDEER 

 Aegialitis vocifera (i) 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 (MS) noted several on San Nicolas in January, and a number on Santa 

 Cruz during November and December, 1907. 



72. Aegialitis semipalmata (Bonaparte) 



Semipalmated Plover 



Aegialitis semipalmata (1) Mearns, Bull. U. S. Nat. Mus., lvi, 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. 



73. Aegialitis nivosa Cassin 



Snowy Plover 



Aegialitis nivosa (i) Grinnell, Pasadena Acad. Sci., i, 1897, p. 26. (2) Linton, Condor, 

 X, 1908, p. 83. (3) Linton, Condor, x, 1908, p. 126. 14) 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. C. 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. 

 0. W. Howard (i) has seen it at San Miguel during the summer months. 



