20 PACIFIC COAST AVIFAUNA No. 12 
but what he found were probably the holes of the puffins; he saw an Auklet 
fly ashore with a fish in its mouth, and plunge into a hole. Of course these birds 
may have nested on Santa Barbara many years ago, and since become extirpated. 
I am inelined to think that Heermann must have been mistaken as to the identity 
of his bird, it having been ‘‘towards night’’, but anyway, there is small likeli- 
hood of the species having nested on any of this group of islands for a great 
many years. 
C. B. Linton and G. Willett (7) took specimens during November and De- 
cember at Santa Cruz Island, and found that they were not particularly shy. The 
crops of those shot contained sardines three or four inches long. There is in the 
British Museum (2) an adult taken in spring at San Miguel. 
These birds are deep water fishermen and are to be found near the islands 
only where the ocean bottom drops abruptly. When resting they present a very 
chunky appearanee, and, like most of their near relatives, they prefer to escape a 
pursuer by diving rather than by flying. They arrive in October and leave the 
first part of May, as A. van Rossem and I found them not uncommon at Santa 
Cruz Island up to May 2, 1911. Some of them, at least, acquire their nuptial 
plumage before this time. 
10. Ptychoramphus aleuticus (Pallas) 
Casstn AUKLET 
Ptychoramphus aleuticus (1) Cooper, Proc. Calif. Acad. Sci., tv, 1870, p. 79. (2) Baird, 
Brewer and Ridgway, Water Birds N. Am., 1, 1884, p. 519. (3) Streator, Orn. & Ool., 
xI1I, 1888, p. 54. (4) Townsend, Proc. U. S. Nat. Mus., x11, 1890, p. 140. (5) Ste- 
phens, Auk, x, 1893, p. 298. (6) Grinnell, Pasadena Acad. Sci., 1, 1897, p. 22. (7) 
Ogilvie-Grant, Cat. Birds Brit. Mus., xxvi, 1898, p. 600. (S) Grinnell, Pac. Coast 
Avif., 3, 1902, p. 10. (9) Grinnell & Daggett, Auk, xx, 1903, pp. 30, 37. (10) Rob- 
ertson, Condor, v, 1903, p. 96. (11) Breninger, Auk, xx1, 1904, p. 222. (12) Reed, 
N. Am. Birds’ Eggs, 1904, p. 14. (13) Mearns, Bull. U. S. Nat. Mus., tv1, 1907, p. 141. 
(14) Linton, Condor, x, 1908, p. 82. (75) Linton, Condor, x, 1908, p. 125. (16) 
Wright, Condor, x1, 1909, p. 98. (17) Osburn, Condor, x1, 1909, p. 135. (18) Willett, 
Condor, xu, 1910, p. 172. (19) Willett, Pac. Coast Avif., 7, 1912, p. 11. (20) Wright 
and Snyder, Condor, xv, 1913, pp. 86, 88. (21) Grinnell, Pac. Coast Avif., 11, 1915, 
p. 18. 
Ptychorampus aleuticus (22) Grinnell, Pasadena Acad. Sci., 11, 1898, p. 6. 
Cassin Auklet (23) Beck, Bull. Cooper Orn. Club, 1, 1899, p. 85. (24) Anthony, Bull. 
Cooper Orn. Club, 1, 1899, p. 102. (25) Willett, Condor, x1, 1910, p. 171. 
A most abundant resident, breeding in all suitabie localities that are free 
from cats and foxes. On the northernmost of the Coronados group there is a 
very large colony of these birds, but they occur on none of the other three. Com- 
mon in the vicinity of San Clemente and Catalina during the winter months, but 
not recorded from either place in summer or spring. 
In May, 1863, Cooper (2) found these birds numerous on Santa Barbara, 
where they had undermined almost every part of the soft, earthy surface with 
their burrows. In May, 1897, J. Grinnell (8, 22) recorded it as breeding in large 
numbers in the same locality. Since that time, cats have been introduced, and 
