22 PACIFIC COAST AVIFAUNA No. 12 



11. Synthliboramphus antiquus (Gmelin) 



Ancient Murrelet 



Synth libo7-amphvs antiquus (/) Linton, Condor, x, 1908, p. 125. (?) Linton, Condor, xt, 

 1909, p. 102. (3) Linton. Condor, x, 1908, p. 193. (.'/) Osburn, Condor, xin, 1911, p. 

 76. (J) Willett, Pac. Coast Avif., 7, 1912, p. 11. (C) Grinnell, Pac. Coast Avif., 11, 

 1915, p. 18. 



Probably a regular winter visitant, though there are comparatively few 

 records of its occurrence. C. B. Linton {2, 3) took several and saw the remains 

 of others during November and December, 1908, at San Clemente. At Catalina, 

 February 18, 1910, A. van Rossem (MS) obtained an individual that was feeding 

 near several Rhinoceros Auklets. C. B. Linton (i) secured two near the shore of 

 Santa Cruz Island, December 17 and 18, 1907. 



12. Brachyramphus hypoleucus Xantus 



Xantus Murrelet 



Brachyramphus hypoleucus (1) Cooper, Proc. Calif. Acad. Sci., iv, 1868, p. 12. (2) Coo- 

 per, Proc. Calif. Acad. Sci., iv, 1870, p. 79. (3) Goss, Auk, i, 1884, p. 396. (.'/) Bry- 

 ant, Cat. Birds Lower Calif., 1890, p. 250. (-■;) Grinnell, Pasadena Acad. Sci., i, 1897, 

 p. 23. (6") Grinnell, Pasadena Acad. Sci., ii, 1898, p. 6. (7) Brewster, Birds Cape 

 Region Lower Calif., 1902, p. 15. (8) Grinnell, Pac. Coast Avif., 3, 1902, p. 11. (9) 

 Bailey, Handb. Birds West. U. S., 2d ed., 1904, p. 16. (10) Reed, N. Am. Birds' 

 Eggs, 1904, p. 16. ill) Linton, Condor, x, 1908, p. 125. (12) Lamb, Condor, xi, 1909, 

 p. 8. (13) Wright, Condor, xi, 1909, p. 98. (Uf) Osburn, Condor, xi, 1909, p. 136. 

 (15) Linton, Condor, xi, 1909, p. 193. (16) Willett, Condor, xii, 1910, p. 170. (17) 

 Howell, Condor, xii, 1910, p. 184. (18) A. O. U. Check-list, 3d ed., 1910, p. 30. (19) 

 Willett, Pac. Coast Avif., 7, 1912, p. 12. (20) Wright and Snyder, Condor, xv, 1913, 

 pp. 86, 89. (21) van Rossem, Condor, xvii, 1915, p. 73. (22) Grinnell, Pac. Coast 

 Avif., 11, 1915, p. 19. 



Xantus Murrelet (23) Anthony, Bull. Cooper Orn. Club, i, 1899^ p. 102. (2-',) Peyton, 

 Oologist, XXX, 1913, p. 78. 



Micruria hypoleuca (25) Anthony, Auk, xvii, 1900, p. 168. 



Occurs in considerable numbers throughout the entire group of islands dur- 

 ing the winter, and has been recorded breeding as far north as Anacapa. 



A. W. Anthony (33) was the first to discover this bird nesting on the Coro- 

 nados ; since then it seems to have increased steadily in numbers, until at 

 present it may be classed as abundant on all four islands of the group. One 

 or nioi'e wild house cats on south island, however, make sad inroads on the birds 

 that venture to nest there. C. B. Linton (15) took one at Clemente in December, 

 1908; H. Wright {19} has seen them there in summer, and believes that they 

 were breeding. I consider this highly improbable, however, except that a few 

 pairs may possibly be found on a large rock near the western end. 



J. Gr. Cooper (2) reported them as breeding sparingly on Santa Barbara 

 Island in 1863, and H. Wright (20) found a single fresh egg in a hole on this 

 island, July 2, 1912. They are surely destined to Ix^ driven from this locality, as 

 liave the auklets, by the cats. II. C. Burt {19) took a slightly incubated egg on 

 Anacapa, May 15, 1911, and during tlie spring of 1913, D. R. Dickey and A. van 



