CASSIN'S AUKLET

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CASSIN'S AUKLET (Ptychoramphus aleuticus)

CASSIN'S AUKLET (Ptychoramphus aleuticus)


Cassin's Auklets have been collected on all eight California Channel Islands.


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FARALLON ISLANDS
ISLAND COLLECTOR INSTITUTION DATE NUMBER SPECIMEN
Farallon Islands James Hepburn NMNH undated (19th century) B2353.4141010 Ptychoramphus aleuticus Birds
Farallon Islands Ferdinand Gruber NMNH undated (19th century) USNM-4509 Ptychoramphus aleuticus aleuticus Birds
Farallon Islands Ferdinand Gruber NMNH undated (19th century) USNM-5156 Ptychoramphus aleuticus aleuticus Birds
Farallon Islands Ferdinand Gruber MVZ May 1, 1862 MVZ-1949 Ptychoramphus aleuticus aleuticus Birds
Farallon Islands Albert M. Ingersoll WFVZ June 16, 1885 WFVZ-88927 Ptychoramphus aleuticus Eggs
Farallon Islands Albert M. Ingersoll NMNH June 17, 1885 USNM-B26440 Ptychoramphus aleuticus Eggs
Farallon Islands Albert M. Ingersoll NMNH June 17, 1885 USNM-B26441. Ptychoramphus aleuticus Eggs
Farallon Islands Judson Craig WFVZ June 29, 1891 WFVZ-200421 Ptychoramphus aleuticus Eggs
Farallon Islands Judson Craig WFVZ June 29, 1891 WFVZ-200424 Ptychoramphus aleuticus Eggs
Farallon Islands Judson Craig WFVZ June 30, 1891 WFVZ-174345 Ptychoramphus aleuticus Eggs
Farallon Islands Frank Craig NMNH July 1, 1892 USNM-B27289 Ptychoramphus aleuticus Eggs
Farallon Islands Frank Craig NMNH July 1, 1892 USNM-B27290 Ptychoramphus aleuticus Eggs
Farallon Islands Frank Craig NMNH July 1, 1892 USNM-B27291 Ptychoramphus aleuticus Eggs
Farallon Islands Frank Craig NMNH July 1, 1892 USNM-B27292 Ptychoramphus aleuticus Eggs
Farallon Islands Frank Craig NMNH July 1, 1892 USNM-B27293 Ptychoramphus aleuticus Eggs
Farallon Islands Frank Craig NMNH July 1, 1892 USNM-B27294 Ptychoramphus aleuticus Eggs
Farallon Islands Frank Craig NMNH July 1, 1892 USNM-B30548 Ptychoramphus aleuticus Eggs
Farallon Islands Frank Craig WFVZ July 1, 1892 WFVZ-100264 Ptychoramphus aleuticus Eggs
Farallon Islands Frank Craig WFVZ July 1, 1892 WFVZ-200382 Ptychoramphus aleuticus Eggs
Farallon Islands Frank Craig WFVZ July 1, 1892 WFVZ-200401 Ptychoramphus aleuticus Eggs
Farallon Islands Frank Craig NMNH July 3, 1892 USNM-B30549 Ptychoramphus aleuticus Eggs
Farallon Islands Chester Barlow WFVZ July 6, 1892 WFVZ-200428 Ptychoramphus aleuticus Eggs
Farallon Islands Chester Barlow WFVZ July 7, 1892 WFVZ-200419 Ptychoramphus aleuticus Eggs
Farallon Islands Wilfred H. Osgood ROM nd ROM-39914 Ptychoramphus aleuticus Eggs
Farallon Islands Wilfred H. Osgood WFVZ June 6, 1894 WFVZ-89743 Ptychoramphus aleuticus Eggs
Farallon Islands Wilfred H. Osgood WFVZ June 6, 1894 WFVZ-89744 Ptychoramphus aleuticus Eggs
Farallon Islands Wilfred H. Osgood WFVZ June 6, 1894 WFVZ-89745 Ptychoramphus aleuticus Eggs
Farallon Islands Wilfred H. Osgood WFVZ June 7, 1894 WFVZ-89746 Ptychoramphus aleuticus Eggs
Farallon Islands Wilfred H. Osgood WFVZ June 7, 1894 WFVZ-89747 Ptychoramphus aleuticus Eggs
Farallon Islands Wilfred H. Osgood WFVZ June 7, 1894 WFVZ-89748 Ptychoramphus aleuticus Eggs
Farallon Islands Wilfred H. Osgood WFVZ June 7, 1894 WFVZ-89749 Ptychoramphus aleuticus Eggs
Farallon Islands Wilfred H. Osgood WFVZ June 7, 1894 WFVZ-89750 Ptychoramphus aleuticus Eggs
Farallon Islands Wilfred H. Osgood WFVZ June 7, 1894 WFVZ-89751 Ptychoramphus aleuticus Eggs
Farallon Islands Wilfred H. Osgood WFVZ June 7, 1894 WFVZ-89752 Ptychoramphus aleuticus Eggs
Farallon Islands Wilfred H. Osgood WFVZ June 7, 1894 WFVZ-89753 Ptychoramphus aleuticus Eggs
Farallon Islands Wilfred H. Osgood WFVZ June 7, 1894 WFVZ-89754 Ptychoramphus aleuticus Eggs
Farallon Islands Wilfred H. Osgood WFVZ June 7, 1894 WFVZ-89755 Ptychoramphus aleuticus Eggs
Farallon Islands Wilfred H. Osgood WFVZ June 8, 1894 WFVZ-89756 Ptychoramphus aleuticus Eggs
Farallon Islands Wilfred H. Osgood WFVZ June 8, 1894 WFVZ-89757 Ptychoramphus aleuticus Eggs
Farallon Islands Wilfred H. Osgood WFVZ June 10, 1894 WFVZ-89758 Ptychoramphus aleuticus Eggs
Farallon Islands Wilfred H. Osgood WFVZ June 10, 1894 WFVZ-89760 Ptychoramphus aleuticus Eggs
Farallon Islands Wilfred H. Osgood WFVZ June 10, 1894 WFVZ-89761 Ptychoramphus aleuticus Eggs
Farallon Islands Wilfred H. Osgood WFVZ June 10, 1894 WFVZ-89762 Ptychoramphus aleuticus Eggs
Farallon Islands Wilfred H. Osgood WFVZ June 10, 1894 WFVZ-89763 Ptychoramphus aleuticus Eggs
Farallon Islands Wilfred H. Osgood WFVZ June 11, 1894 WFVZ-89764 Ptychoramphus aleuticus Eggs
Farallon Islands Wilfred H. Osgood WFVZ June 11, 1894 WFVZ-89765 Ptychoramphus aleuticus Eggs
Farallon Islands Wilfred H. Osgood WFVZ June 11, 1894 WFVZ-89766 Ptychoramphus aleuticus Eggs
Farallon Islands Wilfred H. Osgood WFVZ June 17, 1894 WFVZ-200405 Ptychoramphus aleuticus Eggs
Farallon Islands Wilfred H. Osgood MVZ June 18, 1894 MVZ-5822 Ptychoramphus aleuticus aleuticus Eggs/Nests
Farallon Islands Wilfred H. Osgood WFVZ June 18, 1894 WFVZ-69778 Ptychoramphus aleuticus Eggs
Farallon Islands Wilfred H. Osgood WFVZ June 18, 1894 WFVZ-89759 Ptychoramphus aleuticus Eggs
Farallon Islands Wilfred H. Osgood CAS June 19, 1894 CAS-34673 Ptychoramphus aleuticus aleuticus Birds
Farallon Islands Wilfred H. Osgood NMNH June 19, 1894 USNM-162717 Ptychoramphus aleuticus Birds
Farallon Islands Wilfred H. Osgood NMNH June 20, 1894 USNM-162718 Ptychoramphus aleuticus Birds
Farallon Islands Chester Barlow WFVZ June 21, 1894 WFVZ-174975 Ptychoramphus aleuticus aleuticus Eggs
Farallon Islands Wilfred H. Osgood MVZ June 21, 1894 MVZ-31432 Ptychoramphus aleuticus aleuticus Birds
Farallon Islands Wilfred H. Osgood NMNH June 21, 1894 USNM-162739 Ptychoramphus aleuticus Eggs
Farallon Islands Wilfred H. Osgood WFVZ June 21, 1894 WFVZ-89783 Ptychoramphus aleuticus Eggs
Farallon Islands Wilfred H. Osgood NMNH July 1894 USNM-177574 Ptychoramphus aleuticus Eggs
Farallon Islands Chester Barlow DMNS June 9, 1895 DMNS- 3504 Ptychoramphus aleuticus Eggs
Farallon Islands Chester Barlow MVZ June 15, 1895 MVZ- 10381 Ptychoramphus aleuticus Eggs
Farallon Islands Chester Barlow LACM June 16, 1895 LACM- 5022 Ptychoramphus aleuticus Eggs
Farallon Islands Chester Barlow MVZ June 16, 1895 MVZ- 31433 Ptychoramphus aleuticus Eggs
Farallon Islands Chester Barlow CAS June 17, 1895 CAS- 22208 Ptychoramphus aleuticus Eggs
Farallon Islands Chester Barlow LACM July 15, 1895 LACM- 5036 Ptychoramphus aleuticus Eggs
Farallon Islands Chester Barlow LACM July 15, 1895 LACM- 5037 Ptychoramphus aleuticus Eggs
Farallon Islands Chester Barlow MVZ July 15, 1895 MVZ- 10382 Ptychoramphus aleuticus Eggs
Farallon Islands Chester Barlow MVZ July 15, 1895 MVZ- 10383 Ptychoramphus aleuticus Eggs
Farallon Islands Chester Barlow MVZ July 15, 1895 MVZ- 31434 Ptychoramphus aleuticus Eggs
Farallon Islands Wilfred H. Osgood NMNH July 1895 USNM-177574 Ptychoramphus aleuticus Eggs
Farallon Islands Chester Barlow UAZ n.d. UAZ-012846 Ptychoramphus aleuticus Eggs



ANACAPA ISLAND
ISLAND COLLECTOR INSTITUTION DATE NUMBER SPECIMEN
Anacapa Island James Miles SBMNH January 7, 1973 SBMNH-AV2215 Ptychoramphus aleuticus Birds


SAN CLEMENTE ISLAND

1907 San Clemente Island: “Ptychoramphus aleuticus. Cassin Auklet. Frequently seen near shore; especially common near Ship Rock, west coast, and in the channel between Catalina and San Clemente Islands.” [“Visits were made to Clemente in January, February, March, April and October, 1907.”]
Linton, C. B. Notes from San Clemente Island The Condor 10:82-86, March 1908


ISLAND COLLECTOR INSTITUTION DATE NUMBER SPECIMEN
San Clemente Island H. W. Wright CAS April 23, 1909 CAS-75225 Ptychoramphus aleuticus aleuticus Birds
San Clemente Island Irwin D. Nokes WFVZ February 6, 1915 WFVZ-2381 Ptychoramphus aleuticus Birds
San Clemente Island Irwin D. Nokes WFVZ February 6, 1915 WFVZ-2382 Ptychoramphus aleuticus Birds
San Clemente Island Irwin D. Nokes WFVZ February 6, 1915 WFVZ-2384 Ptychoramphus aleuticus Birds


SAN MIGUEL ISLAND

1886-1887 San Miguel Island: “All investigators have found Cassin's Auklets (Ptychoramphus aleuticus) at San Miguel Island. For Prince Island in 1886, Streator (1888) states:

“where there was any soil, it was full of burrows in every direction, made by Cassin's Auklets...”.

R. H. Beck collected one set of eggs on 18 May 1897 (WFVZ uncat.), possibly on an islet or rock other than Prince Island. Burt (unpubl. notes in WFVZ) and Appleton (unpubl. notes) state, respectively, that on 6 June 1906:

“the island was almost honeycombed by the birds' burrows” and “at least 1,000 pairs breed here”.

They collected two sets of eggs (WFVZ 32104 and 76185).


1910-1975 San Miguel Island: Ten sets of eggs were collected in June 1910 on Prince Island (WFVZ 4368, 6154, 76184 and uncat.), and Willett (1910) and A. Jau (unpubl. notes in WFVZ) found them to be abundant on the island at this time. Wright and Snyder (1913) found “a very large colony” which “nested on the northwest and north slopes” of Prince Island. J. Van Denburgh found only about 100 pairs of Cassin's Auklets (unpubl. notes in WFVZ) from which he collected 11 sets on 19 May 1919 and J. R. Pemberton and D. S. DeGroot found only 50 pairs breeding here (DeGroot unpub. notes) on 31 March 1927 and took 12 sets (SBM uncat. WFVZ 61969-61976, 2600, 2601). Specifically, Pemberton (unpub. notes) mentions two separate small colonies on the north and werst sides of Prince Island. It is unclear from his notes whether his estimates are of numbers of burrows seen, active burrows examined or some other parameter. Nevertheless, the figures are far lower than any other estimates prior to or since those dates (see Ainley and Lewis 1974, for discussing of dramatic short-term population fluctuations on the Farallon Island). Cassin's Auklets were once again very common in 1939. Though Sumner and Bond (Sumber 1939) saw no birds when they visited Prince Island on 18 April, they found “a considerable number of fresh burrows”. Craig and Sheppard (unpubl. notes) estimated 3,000 pairs on 27 July 1965. Personnel with the P.O.B.S.P. in 1968 (Huber 1968) estimated 1,500 nests on Prince Island, a number only 1/7 of our estimate in 1975. They did not find auklets nesting on the flat top of the island, whereas we found numerous active burrows there in the ice plant. They did not determine the status, nor even mention the presence, of auklets on Castle Rock in 1968 although they landed there. We could see numerous burrows on the islet from our boat in 1975. These data suggest that auklets were more abundant in 1975 than in 1968, though P.O.B.S.P. estimate of only 1,500 nests on Prince Island is probably low. Our original estimate was of 1,500-2,000 on Prince Island in 1975; however, density area censusing revealed many more borrows present than we had suspected and we revised our estimates to 10,000 pairs.” [Marine Mammal and Seabird Survey of the Southern California Bight, Volume 3, Issue 3. University of California Santa Cruz et al., July 1978]”


ISLAND COLLECTOR INSTITUTION DATE NUMBER SPECIMEN
San Miguel Island George Davidson ANSP (1871?) ANSP-26560 Ptychoramphus aleuticus Birds
San Miguel Island George Davidson ANSP (1871?) ANSP-26561 Ptychoramphus aleuticus Birds
San Miguel Island R. H. Beck WFVZ May 18, 1897 WFVZ-202581 Ptychoramphus aleuticus Eggs
San Miguel Island Chester Barlow UWYMV May 19, 1897 UWYMV-356 Ptychoramphus aleuticus aleuticus Birds
San Miguel Island (Prince Island) J. S. Appleton WFVZ June 6, 1906 WFVZ-32104 Ptychoramphus aleuticus Eggs
San Miguel Island (Prince Island) Antonin Jay WFVZ June 15, 1910 WFVZ-45502 Ptychoramphus aleuticus Eggs
San Miguel Island (Prince Island) Antonin Jay WFVZ June 15, 1910 WFVZ-45503 Ptychoramphus aleuticus Eggs
San Miguel Island (Prince Island) Antonin Jay WFVZ June 15, 1910 WFVZ-45504 Ptychoramphus aleuticus Eggs
San Miguel Island J. S. Appleton WFVZ June 15, 1910 WFVZ-76184 Ptychoramphus aleuticus Eggs
San Miguel Island J. S. Appleton WFVZ June 15, 1910 WFVZ-76185 Ptychoramphus aleuticus Eggs
San Miguel Island George Willett WFVZ June 15, 1910 WFVZ-211 Ptychoramphus aleuticus Eggs
San Miguel Island (Prince Island) George Willett WFVZ June 15, 1910 WFVZ-88932 Ptychoramphus aleuticus Eggs
San Miguel Island John Van Denburgh MVZ May 19, 1919 MVZ-5826 Ptychoramphus aleuticus aleuticus Eggs
San Miguel Island D. S. DeGroot ROM March 31, 1927 ROM-504348 Ptychoramphus aleuticus Eggs
San Miguel Island D. S. DeGroot SBMNH March 31, 1927 SBMNH-22965 Ptychoramphus aleuticus Eggs
San Miguel Island (Prince Island) D. S. DeGroot WFVZ March 31, 1928 WFVZ-61969 Ptychoramphus aleuticus Eggs
San Miguel Island (Prince Island) D. S. DeGroot WFVZ March 31, 1928 WFVZ-61970 Ptychoramphus aleuticus Eggs
San Miguel Island (Prince Island) D. S. DeGroot WFVZ March 31, 1928 WFVZ-61971 Ptychoramphus aleuticus Eggs
San Miguel Island (Prince Island) D. S. DeGroot WFVZ March 31, 1928 WFVZ-61972 Ptychoramphus aleuticus Eggs
San Miguel Island (Prince Island) D. S. DeGroot WFVZ March 31, 1928 WFVZ-61973 Ptychoramphus aleuticus Eggs
San Miguel Island (Prince Island) D. S. DeGroot WFVZ March 31, 1928 WFVZ-61974 Ptychoramphus aleuticus Eggs
San Miguel Island (Prince Island) D. S. DeGroot WFVZ March 31, 1928 WFVZ-61975 Ptychoramphus aleuticus Eggs
San Miguel Island (Prince Island) D. S. DeGroot WFVZ March 31, 1928 WFVZ-61976 Ptychoramphus aleuticus Eggs
San Miguel Island (Prince Island) J. R. Pemberton WFVZ March 31, 1927 WFVZ-201 Ptychoramphus aleuticus Eggs
San Miguel Island (Prince Island) J. R. Pemberton WFVZ March 31, 1927 WFVZ-202 Ptychoramphus aleuticus Eggs
San Miguel Island (Prince Island) J. R. Pemberton WFVZ March 31, 1927 WFVZ-192121 Ptychoramphus aleuticus Eggs
San Miguel Island (Prince Island) J. E. Green SDNHM April 28, 1938 SDNHM-17902 Ptychoramphus aleuticus Birds
San Miguel Island (Prince Island) J. E. Green SDNHM April 28, 1938 SDNHM-17903 Ptychoramphus aleuticus Birds
San Miguel Island (Prince Island) J. E. Green SDNHM April 28, 1938 SDNHM-17904 Ptychoramphus aleuticus Birds
San Miguel Island (Prince Island) J. E. Green SDNHM April 28, 1938 SDNHM-17905 Ptychoramphus aleuticus Birds
San Miguel Island (Prince Island) J. E. Green SDNHM April 28, 1938 SDNHM-17915 Ptychoramphus aleuticus Birds
San Miguel Island (Prince Island) J. E. Green SDNHM April 28, 1938 SDNHM-17916 Ptychoramphus aleuticus Birds
San Miguel Island (Prince Island) J. E. Green SDNHM April 28, 1938 SDNHM-17917 Ptychoramphus aleuticus Birds
San Miguel Island (unknown/Lawrence Collection) AMNH undated AMNH-46141 Ptychoramphus aleuticus Birds
San Miguel Island (unknown/Lawrence Collection) CMNH undated CMNH-10976 Ptychoramphus aleuticus Birds


SAN NICOLAS ISLAND

1897 San Nicolas Island: “Ptychoramphus aleuticus—Cassin's Auklet. Large numbers of these birds were seen during the day off San Nicolas Island, between it and Santa Barbara Island, but no breeding colony was discovered on the former... Entire List of Water-Birds Observed. [March 26-April 4; May 11-June 9]. The party [of the second trip] consisted of Joseph Grinnell, who had immediate charge of the expedition, and gave special attention to the ornithology and entomology of the islands; Horace Gaylord, who collected mammals; and Harry Gaylord and James Brittan [Britton] who devoted their time to archaeology. The party left San Pedro harbor May 11 in a large fishing schooner... [returning June 9, 1897]”
Grinnell, Joseph The Islands of Santa Barbara, San Nicolas and San Clemente, in the Spring of 1897 Pasadena Academy of Sciences Publication No. 1, August, 1897 (26 pages).


ISLAND COLLECTOR INSTITUTION DATE NUMBER SPECIMEN
San Nicolas Island C. B. Linton KU March 15, 1907 KU-25338 Ptychoramphus aleuticus aleuticus Birds


SANTA BARBARA ISLAND

1897 Santa Barbara Island: “Ptychoramphus aleuticus—Cassin's Auklet. This bird was breeding in large numbers on Santa Barbara Island. The southwest side of the mesa from the top of the bluff to the summit of the hill was crowded with their burrows. On the evening of May 16, Mr. Gaylord and I went over to this colony. Not a single bird was to be seen above ground during the day, nor even until quite dark; but by 8 o'clock the Auklets began one by one to arrive from out to sea. They would alight among the weeds with a thud and shuffle through the stalks in a very uncertain manner, but each one seemed to know where his respective burrow was. When leaving, they generally had a hard time to gain their flight, flopping among the weeds in a most awkward way. We caught quite a number besides digging out several. The gullets of those arriving were distended with a quantity of partly digested fish for feeding the young. Out of the eleven occupied burrows dug into, four contained each a badly incubated egg with the old bird, and the other burrows young of various sizes. The burrows were two and four feet long with an eliptical nest cavity at the end, four inches in diameter. Nineteen specimens of the Cassin's Auklet were preserved. Large numbers of these birds were seen during the day off San Nicolas Island, between it and Santa Barbara Island, but no breeding colony was discovered on the former... Entire List of Water-Birds Observed. [March 26-April 4; May 11-June 9]. The party [of the second trip] consisted of Joseph Grinnell, who had immediate charge of the expedition, and gave special attention to the ornithology and entomology of the islands; Horace Gaylord, who collected mammals; and Harry Gaylord and James Brittan [Britton] who devoted their time to archaeology. The party left San Pedro harbor May 11 in a large fishing schooner... [returning June 9, 1897]”
Grinnell, Joseph The Islands of Santa Barbara, San Nicolas and San Clemente, in the Spring of 1897 Pasadena Academy of Sciences Publication No. 1, August, 1897 (26 pages).


ISLAND COLLECTOR INSTITUTION DATE NUMBER SPECIMEN
Santa Barbara Island J. G. Cooper CAS May 25, 1863 CAS-22215 Ptychoramphus aleuticus aleuticus Birds
Santa Barbara Island J. G. Cooper MVZ May 26, 1863 MVZ-1950 Ptychoramphus aleuticus aleuticus Eggs
Santa Barbara Island J. G. Cooper MVZ May 1863 MVZ-4439 Ptychoramphus aleuticus aleuticus Birds
Santa Barbara Island J. G. Cooper MVZ June 1, 1863 MVZ-4440 Ptychoramphus aleuticus aleuticus Birds
Santa Barbara Island J. G. Cooper MVZ June 12, 1863 MVZ-4441 Ptychoramphus aleuticus aleuticus Birds
Santa Barbara Island C. M. Scammon NMNH 1873 USNM-B16635.4146505 Ptychoramphus aleuticus Birds
Santa Barbara Island Joseph Grinnell MVZ May 16, 1897 MVZ-405 Ptychoramphus aleuticus aleuticus Eggs
Santa Barbara Island Joseph Grinnell MVZ May 16, 1897 MVZ-31435 Ptychoramphus aleuticus aleuticus Birds
Santa Barbara Island Joseph Grinnell MVZ May 16, 1897 MVZ-31436 Ptychoramphus aleuticus aleuticus Birds
Santa Barbara Island Joseph Grinnell MVZ May 16, 1897 MVZ-31437 Ptychoramphus aleuticus aleuticus Birds
Santa Barbara Island Virgil W. Owen WFVZ June 3, 1899 WFVZ-74067 Ptychoramphus aleuticus Eggs
Santa Barbara Island Virgil W. Owen WFVZ June 3, 1899 WFVZ-74068 Ptychoramphus aleuticus Eggs
Santa Barbara Island Virgil W. Owen WFVZ June 3, 1899 WFVZ-74069 Ptychoramphus aleuticus Eggs
Santa Barbara Island Virgil W. Owen WFVZ June 3, 1899 WFVZ-74070 Ptychoramphus aleuticus Eggs
Santa Barbara Island Virgil W. Owen WFVZ June 3, 1899 WFVZ-74071 Ptychoramphus aleuticus Eggs
Santa Barbara Island Virgil W. Owen WFVZ June 3, 1899 WFVZ-74072 Ptychoramphus aleuticus Eggs
Santa Barbara Island Virgil W. Owen WFVZ June 3, 1899 WFVZ-148862 Ptychoramphus aleuticus Eggs
Santa Barbara Island Howard H. Robertson WFVZ June 3, 1899 WFVZ-74073 Ptychoramphus aleuticus Eggs
Santa Barbara Island Virgil W. Owen OSUM June 3, 1899 OSUM-4043 Ptychoramphus aleuticus Eggs
Santa Barbara Island Virgil W. Owen OSUM June 4, 1899 OSUM-4042 Ptychoramphus aleuticus Eggs
Santa Barbara Island William L. Chambers UF June 4, 1899 UF-932 Ptychoramphus aleuticus Eggs
Santa Barbara Island William L. Chambers NMNH June 4, 1899 USNM-B42120.4168725 Ptychoramphus aleuticus Eggs
Santa Barbara Island William L. Chambers NMNH June 4, 1899 USNM-B42121.4168726 Ptychoramphus aleuticus Eggs
Santa Barbara Island William L. Chambers NMNH June 4, 1899 USNM-B42122.4168727 Ptychoramphus aleuticus Eggs
Santa Barbara Island William L. Chambers WFVZ June 4, 1899 WFVZ-88946 Ptychoramphus aleuticus Eggs
Santa Barbara Island H. S. Swarth CAS June 8, 1889 CAS-34674 Ptychoramphus aleuticus aleuticus Birds
Santa Barbara Island H. S. Swarth CAS June 8, 1889 CAS-34675 Ptychoramphus aleuticus aleuticus Birds
Santa Barbara Island H. S. Swarth CAS June 8, 1889 CAS-34676 Ptychoramphus aleuticus aleuticus Birds
Santa Barbara Island H. S. Swarth CAS June 8, 1889 CAS-34677 Ptychoramphus aleuticus aleuticus Birds
Santa Barbara Island H. S. Swarth CAS June 8, 1889 CAS-34678 Ptychoramphus aleuticus aleuticus Birds
Santa Barbara Island H. S. Swarth CAS June 8, 1889 CAS-34679 Ptychoramphus aleuticus aleuticus Birds
Santa Barbara Island H. S. Swarth CAS June 8, 1889 CAS-38780 Ptychoramphus aleuticus aleuticus Birds
Santa Barbara Island H. S. Swarth CAS June 8, 1889 CAS-38781 Ptychoramphus aleuticus aleuticus Birds
Santa Barbara Island H. S. Swarth CAS June 8, 1889 CAS-38782 Ptychoramphus aleuticus aleuticus Birds
Santa Barbara Island H. S. Swarth CAS June 8, 1889 CAS-38783 Ptychoramphus aleuticus aleuticus Birds
Santa Barbara Island H. S. Swarth CAS June 8, 1889 CAS-38784 Ptychoramphus aleuticus aleuticus Birds
Santa Barbara Island H. S. Swarth CAS June 8, 1889 CAS-38785 Ptychoramphus aleuticus aleuticus Birds
Santa Barbara Island H. S. Swarth CAS June 8, 1889 CAS-38786 Ptychoramphus aleuticus aleuticus Birds
Santa Barbara Island H. S. Swarth CAS June 8, 1889 CAS-38787 Ptychoramphus aleuticus aleuticus Birds
Santa Barbara Island H. S. Swarth MCZ June 8, 1889 MCZ-104390 Ptychoramphus aleuticus aleuticus Birds
Santa Barbara Island H. S. Swarth CAS June 9, 1889 CAS-38788 Ptychoramphus aleuticus aleuticus Birds
Santa Barbara Island H. S. Swarth CAS June 9, 1889 CAS-38789 Ptychoramphus aleuticus aleuticus Birds
Santa Barbara Island Howard H. Robertson WFVZ June 9, 1899 WFVZ-88935 Ptychoramphus aleuticus Eggs
Santa Barbara Island Howard H. Robertson WFVZ June 9, 1899 WFVZ-88936 Ptychoramphus aleuticus Eggs
Santa Barbara Island Howard H. Robertson WFVZ June 9, 1899 WFVZ-88937 Ptychoramphus aleuticus Eggs
Santa Barbara Island Howard H. Robertson WFVZ June 9, 1899 WFVZ-88938 Ptychoramphus aleuticus Eggs
Santa Barbara Island Howard H. Robertson WFVZ June 9, 1899 WFVZ-88939 Ptychoramphus aleuticus Eggs
Santa Barbara Island Howard H. Robertson WFVZ June 9, 1899 WFVZ-88940 Ptychoramphus aleuticus Eggs
Santa Barbara Island Howard H. Robertson WFVZ June 9, 1899 WFVZ-88941 Ptychoramphus aleuticus Eggs
Santa Barbara Island Howard H. Robertson WFVZ June 9, 1899 WFVZ-88942 Ptychoramphus aleuticus Eggs
Santa Barbara Island Howard H. Robertson WFVZ June 9, 1899 WFVZ-88943 Ptychoramphus aleuticus Eggs
Santa Barbara Island Howard H. Robertson WFVZ June 9, 1899 WFVZ-88944 Ptychoramphus aleuticus Eggs
Santa Barbara Island Howard H. Robertson WFVZ June 9, 1899 WFVZ-88945 Ptychoramphus aleuticus Eggs
Santa Barbara Island Howard H. Robertson WFVZ June 9, 1899 WFVZ-192120 Ptychoramphus aleuticus Eggs
Santa Barbara Island Loye Miller MVZ April 11, 1904 MVZ-6161 Ptychoramphus aleuticus aleuticus Birds
Santa Barbara Island C. B. Linton DMNH February 10, 1907 DMNH-6102 Ptychoramphus aleuticus aleuticus Birds
Santa Barbara Island George Willett NMNH June 14, 1911 USNM-415737.4088512 Ptychoramphus aleuticus Birds
Santa Barbara Island George Willett WFVZ June 14, 1911 WFVZ-212 Ptychoramphus aleuticus Eggs
Santa Barbara Island H. W. Wright CAS July 2, 1912 CAS-75224 Ptychoramphus aleuticus aleuticus Birds


SANTA CATALINA ISLAND
ISLAND COLLECTOR INSTITUTION DATE NUMBER SPECIMEN
Santa Catalina Island Frank Stephens ? ISM March 16, 1893 ISM-604385 Ptychoramphus aleuticus Birds
Santa Catalina Island Frank Stephens DMNS March 16, 1893 DMNS-27302 Ptychoramphus aleuticus Birds
Santa Catalina Island F. Stephens SDMNH March 16, 1893 SDNHM-31 Ptychoramphus aleuticus Birds
Santa Catalina Island (unlisted) AMNH March 21, 1893 AMNH-748205 Ptychoramphus aleuticus Birds
Santa Catalina Island F. Stephens SDMNH March 21, 1893 SDNHM-32 Ptychoramphus aleuticus Birds
Santa Catalina Island Frank Stephens MCZ March 21, 1893 MCZ-186279 Ptychoramphus aleuticus Birds
Santa Catalina Island Frank Stephens MCZ March 21, 1893 MCZ-186280 Ptychoramphus aleuticus Birds
Santa Catalina Island Frank Stephens DMNS March 23, 1893 DMNS-27303 Ptychoramphus aleuticus Birds
Santa Catalina Island Frank Stephens DMNS March 23, 1893 DMNS-27303 Ptychoramphus aleuticus Birds
Santa Catalina Island Frank Stephens MCZ March 23, 1893 MCZ-186279 Ptychoramphus aleuticus Birds
Santa Catalina Island Frank Stephens ROM March 23, 1893 ROM-39911 Ptychoramphus aleuticus aleuticus Birds
Santa Catalina Island F. Stephens MMMH March 24, 1893 MMNH-3609 Ptychoramphus aleuticus Birds
Santa Catalina Island Frank Stephens ROM March 26, 1893 ROM-39915 Ptychoramphus aleuticus Birds
Santa Catalina Island Frank Stephens ROM March 26, 1893 ROM-39917 Ptychoramphus aleuticus Birds
Santa Catalina Island Frank Stephens ROM March 28, 1893 ROM-39916 Ptychoramphus aleuticus aleuticus Birds
Santa Catalina Island Frank Stephens ROM April 1, 1893 ROM-39912 Ptychoramphus aleuticus aleuticus Birds
Santa Catalina Island Frank Stephens ROM April 1, 1893 ROM-39913 Ptychoramphus aleuticus aleuticus Birds
Santa Catalina Island F. Stephens SDMNH April 1, 1893 SDNHM-33 Ptychoramphus aleuticus Birds
Santa Catalina Island (unknown) CM March 23, 1895 CM-P22947 Ptychoramphus aleuticus Birds
Santa Catalina Island Joseph Grinnell LACM June 9, 1897 LACM-5027 Ptychoramphus aleuticus aleuticus Birds Santa Catalina Island A. J. Van Rossem UCLA January 24, 1920 UCLA-3451 Ptychoramphus aleuticus aleuticus Birds
Santa Catalina Island A. J. Van Rossem UCLA January 24, 1920 UCLA-3452 Ptychoramphus aleuticus aleuticus Birds
Santa Catalina Island A. J. Van Rossem UCLA January 24, 1920 UCLA-3453 Ptychoramphus aleuticus aleuticus Birds
Santa Catalina Island A. J. Van Rossem UCLA January 26, 1920 UCLA-3469 Ptychoramphus aleuticus aleuticus Birds
Santa Catalina Island A. J. Van Rossem UCLA January 30, 1920 UCLA-3501 Ptychoramphus aleuticus aleuticus Birds
Santa Catalina Island A. J. Van Rossem & D. R. Dickey UCLA February 17, 1921 UCLA-4679 Ptychoramphus aleuticus aleuticus Birds


SANTA CRUZ ISLAND

1895-1897 Santa Cruz Island: “With much interest I read Mr. Jos. Mailliard's article on the birds of Santa Cruz Island in the May-June number of the Bulletin, and finding his experience different from mine in some particulars, I submit a few notes taken principally on the west end of the island in May, 1897. On June 5, 1895, I visited Scorpion Harbor for a few hours and landed on the square-looking rock mentioned by Mr. Mailliard. In addition to the breeding gulls and cormorants (Farallone and Baird's), there were many borrows of Cassin's Auklet which contained heavily incubated eggs or young birds...” Beck, R.H. Additional Notes on the Birds of Santa Cruz Island, Cal., 1899


1907 Santa Cruz Island: “Ptychoramphus aleuticus. Cassin Auklet. Common about Anacapa Island, and in the channel between Anacapa and Santa Cruz. Several were taken along south coast, and noted at other points.” [“At 11:30 p. m., November 19, 1907, my father (H. Linton), Mr. George Willett, and myself left San Pedro harbor in a dilapidated fishing smack and in company with a crawfisherman, one “Cold-foot” Jorgensen. We arrived off the south end of Santa Cruz Island at 10:30 the following day during a stiff norwester. For various reasons we were unable to make camp until the 22nd. It may not be amiss to state here that twice during the blow we were nearly wrecked: once while at anchor in Potatoe Harbor, a broken anchor allowing the boat to drift within the breaker line and nearly onto the rocks. In this instance the timely arrival of Willett and H. Linton in a small boat, saved the day, and incidentally the fishing smack. At another time (the engine having broken down) we were blown nearly onto the rocks of Anacapa Island; but with father at the wheel and Willett and I on the “sheet” we managed to hold her off. I mention the foregoing, and the many sleepless nights spent on the rocky shores, “running” the surf several times each day (with attendant duckings), etc., merely as a warning to those who seem inclined to believe a field naturalists ’ life “strewn with roses”. (Its ’ generally strewn with cacti!)”]
Linton, C. B. Notes from Santa Cruz Island] The Condor 10(3):124-129, May 1908


ISLAND COLLECTOR INSTITUTION DATE NUMBER SPECIMEN
Santa Cruz Island G. Willett & C. B. Linton MCZ November 24, 1907 MCZ-53919 Ptychoramphus aleuticus Birds
Santa Cruz Island M. C. Badger WFVZ April 8, 1919 WFVZ-89785 Ptychoramphus aleuticus Eggs
Santa Cruz Island M. M. Peet UMMZ November 4, 1935 UMMZ-125275 Ptychoramphus aleuticus Birds
Santa Cruz Island M. M. Peet UMMZ November 4, 1935 UMMZ-125276 Ptychoramphus aleuticus Birds
Santa Cruz Island Thomas T. McCabe & Elinor B. McCabe MCZ December 9, 1935 MCZ-282459 Ptychoramphus aleuticus Birds
Santa Cruz Island Thomas T. McCabe & Elinor B. McCabe UMMZ February 9, 1936 MCZ-282460 Ptychoramphus aleuticus Birds
Santa Cruz Island Thomas T. McCabe & Elinor B. McCabe MCZ March 14, 1936 MCZ-282461 Ptychoramphus aleuticus Birds
Santa Cruz Island Thomas T. McCabe & Elinor B. McCabe MCZ October 22, 1936 MCZ-282463 Ptychoramphus aleuticus Birds


SANTA ROSA ISLAND
ISLAND COLLECTOR INSTITUTION DATE NUMBER SPECIMEN
Santa Rosa Island no collector listed SBMNH August, 1968 SBMNH-AV1505 Ptychoramphus aleuticus Birds



BAJA CALIFORNIA ISLANDS


ISLA ASUNCION
ISLAND COLLECTOR INSTITUTION DATE NUMBER SPECIMEN &nb
Isla Asuncion L. G. Peyton MVZ April 5, 1930 MVZ-4698 Ptychoramphus aleuticus australe Eggs
Isla Asuncion J. R. Pemberton WFVZ April 5, 1930 WFVZ-205 Ptychoramphus aleuticus Eggs
Isla Asuncion J. R. Pemberton WFVZ April 5, 1930 WFVZ-206 Ptychoramphus aleuticus Eggs
Isla Asuncion J. R. Pemberton WFVZ April 5, 1930 WFVZ-207 Ptychoramphus aleuticus Eggs


ISLAS CORONADOS
ISLAND COLLECTOR INSTITUTION DATE NUMBER SPECIMEN
Islas Coronados Ralph Arnold MVZ April 15, 1895 MVZ-116728 Ptychoramphus aleuticus aleuticus Birds
Islas Coronados G. C. Robbins USNM March 10, 1896 USNM-B28413 Ptychoramphus aleuticus Eggs
Islas Coronados C. O. Reis SDNHM June 4, 1915 SDNHM-21849 Ptychoramphus aleuticus Birds
Islas Coronados Irwin D. Nokes WFVZ June 5, 1915 WFVZ-163534 Ptychoramphus aleuticus Eggs
Islas Coronados E. E. Sechrist WFVZ May 27, 1916 WFVZ-88981 Ptychoramphus aleuticus Eggs
Islas Coronados E. E. Sechrist WFVZ May 27, 1916 WFVZ-88982 Ptychoramphus aleuticus Eggs
Islas Coronados E. E. Sechrist WFVZ May 27, 1916 WFVZ-88983 Ptychoramphus aleuticus Eggs
Islas Coronados E. E. Sechrist WFVZ May 27, 1916 WFVZ-88984 Ptychoramphus aleuticus Eggs
Islas Coronados E. E. Sechrist WFVZ May 27, 1916 WFVZ-88985 Ptychoramphus aleuticus Eggs
Islas Coronados E. E. Sechrist WFVZ May 27, 1916 WFVZ-88986 Ptychoramphus aleuticus Eggs
Islas Coronados E. E. Sechrist WFVZ May 27, 1916 WFVZ-88987 Ptychoramphus aleuticus Eggs
Islas Coronados E. E. Sechrist WFVZ May 27, 1916 WFVZ-88988 Ptychoramphus aleuticus Eggs
Islas Coronados E. E. Sechrist WFVZ May 27, 1916 WFVZ-88989 Ptychoramphus aleuticus Eggs
Islas Coronados E. E. Sechrist WFVZ May 27, 1916 WFVZ-88990 Ptychoramphus aleuticus Eggs



ISLA SAN MARTIN
ISLAND COLLECTOR INSTITUTION DATE NUMBER SPECIMEN
Isla San Martin Horace Poole WFVZ May 30, 1895 WFVZ-166675 Ptychoramphus aleuticus Eggs
Isla San Martin Horace Poole WFVZ May 30, 1895 WFVZ-200420 Ptychoramphus aleuticus Eggs



ISLA GUADALUPE
ISLAND COLLECTOR INSTITUTION DATE NUMBER SPECIMEN
Isla Guadalupe P. I. Osburn NMNH March 1, 1911 USNM-305760 Ptychoramphus aleuticus Birds
Isla Guadalupe P. I. Osburn AMNH March 1, 1911 AMNH-131287 Ptychoramphus aleuticus Birds
Isla Guadalupe P. I. Osburn AMNH March 5, 1911 AMNH-131289 Ptychoramphus aleuticus Birds
Isla Guadalupe (Islote Negro) Alden H. Miller & C. L. Hubbs MVZ June 13, 1955 MVZ-134055 Ptychoramphus aleuticus australis Birds
Isla Guadalupe (Islote Negro) Alden H. Miller & C. L. Hubbs MVZ June 13, 1955 MVZ-134056 Ptychoramphus aleuticus australis Birds
Isla Guadalupe (Islote Negro) Alden H. Miller & C. L. Hubbs MVZ June 15, 1955 MVZ-134057 Ptychoramphus aleuticus australis Birds
Isla Guadalupe C. L. Hubbs & A. O. Flechsig et. al. LACM February 12, 1957 LACM-88824 Ptychoramphus aleuticus Birds
Isla Guadalupe C. L. Hubbs & A. O. Flechsig et. al. LACM February 12, 1957 LACM-88825 Ptychoramphus aleuticus Birds
Isla Guadalupe C. L. Hubbs & A. O. Flechsig et. al. LACM February 12, 1957 LACM-88826 Ptychoramphus aleuticus Birds
Isla Guadalupe C. L. Hubbs & A. O. Flechsig et. al. LACM February 12, 1957 LACM-88827 Ptychoramphus aleuticus Birds
Isla Guadalupe C. L. Hubbs & A. O. Flechsig et. al. LACM February 12, 1957 LACM-88828 Ptychoramphus aleuticus Birds
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