Difference between revisions of "AMERICAN KESTREL"

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'''1907 San Clemente Island:'''  “Falco sparverius. Sparrow Hawk. These trim little falcons were occasionally seen hovering over the brushy mesas and cacti-covered hillsides of the northeast coast, and inland. Only one specimen, a male, was secured. This differs somewhat in general coloration from specimens taken in the coast district of the mainland, but the normal variation in the species is great.” [“Visits were made to Clemente in January, February, March, April and October, 1907.”]<br> [[LINTON, Clarence Brockman|Linton, C. B.]] ''[https://sora.unm.edu/sites/default/files/journals/condor/v010n02/p0082-p0086.pdf Notes from San Clemente Island]'' The Condor 10:82-86, March 1908
 
'''1907 San Clemente Island:'''  “Falco sparverius. Sparrow Hawk. These trim little falcons were occasionally seen hovering over the brushy mesas and cacti-covered hillsides of the northeast coast, and inland. Only one specimen, a male, was secured. This differs somewhat in general coloration from specimens taken in the coast district of the mainland, but the normal variation in the species is great.” [“Visits were made to Clemente in January, February, March, April and October, 1907.”]<br> [[LINTON, Clarence Brockman|Linton, C. B.]] ''[https://sora.unm.edu/sites/default/files/journals/condor/v010n02/p0082-p0086.pdf Notes from San Clemente Island]'' The Condor 10:82-86, March 1908
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'''1984 San Clemente Island:'''  “American kestrels (''Falco sparverius'') also appear to be numerous, perhaps the result of the overgrazed condition which has resulted in increased foraging habitat.”  ''Recovery Plan for the endangered and threatened species of the California Channel Islands'' published by U.S. Fish & Wildlife Service, Portland, Oregon 1984.
  
  

Latest revision as of 08:09, 7 November 2019

AMERICAN KESTREL (Falco sparverius)

AMERICAN KESTREL (Falco sparverius), aka Desert Sparrow Hawk, are permanent residents on the California Channel Islands.


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SAN CLEMENTE ISLAND

1907 San Clemente Island: “Falco sparverius. Sparrow Hawk. These trim little falcons were occasionally seen hovering over the brushy mesas and cacti-covered hillsides of the northeast coast, and inland. Only one specimen, a male, was secured. This differs somewhat in general coloration from specimens taken in the coast district of the mainland, but the normal variation in the species is great.” [“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


1984 San Clemente Island: “American kestrels (Falco sparverius) also appear to be numerous, perhaps the result of the overgrazed condition which has resulted in increased foraging habitat.” Recovery Plan for the endangered and threatened species of the California Channel Islands published by U.S. Fish & Wildlife Service, Portland, Oregon 1984.


ISLAND COLLECTOR INSTITUTION DATE NUMBER SPECIMEN
San Clemente Island C. B. Linton MCZ February 19, 1907 MCZ-57982 Falco sparverius sparverius Birds
San Clemente Island J. T. Brollini LACM 2001 LACM-111848 Falco sparverius sparverius Bird


SAN MIGUEL ISLAND
ISLAND COLLECTOR INSTITUTION DATE NUMBER SPECIMEN
San Miguel Island D. A. Guthrie PBDB [published 1992] PaleoBotany Data Base-125236 Falco sparverius sparverius Paleo/Birds



SANTA BARBARA ISLAND

1927 Santa Barbara Island: “We spent March 27 here and visited practically every part of this small island. Falco sparverius phalaena. Desert Sparrow Hawk. We all saw four birds and believed them to represent two pairs.” [“Through the generosity of Mr. Silsby M. Spalding who placed at our disposal his splendid cruiser Padariva I the writer accompanied by H. W. Carriger, Dudley DeGroot and 0. W. Howard was enabled to spend the period from March 25 to April 5, 1927, inclusive, among the Channel Islands off the coast of southern California.”]
Pemberton, J. R. Additions to the known avifauna of the Santa Barbara Islands The Condor 30(2):144-148, March-April 1928



SANTA CRUZ ISLAND

1907 Santa Cruz Island:Falco sparverius phalcena. Desert Sparrow Hawk. Occasionally seen. An adult male and female secured in December.” [“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 naturalist’s 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 C. B. Linton MCZ December 14, 1907 MCZ-57983 Falco sparverius sparverius Birds
Santa Cruz Island C. B. Linton MCZ October 17, 1908 MCZ-53970 Falco sparverius sparverius Birds
Santa Cruz Island W. L. Dawson SBMNH April 17, 1919 SBMNH-21262 Falco sparverius Eggs
Santa Cruz Island F. A. Pitelka MVZ September 4, 1948 MVZ-115968 Falco sparverius sparverius Birds
Santa Cruz Island Alden H. Miller MVZ March 5, 1950 MVZ-120089 Falco sparverius sparverius Birds



SANTA ROSA ISLAND

1927 Santa Rosa Island:Falco sparverius phalaena. Desert Sparrow Hawk. A single bird was seen by Pemberton on April 2 in a sycamore [?] near the mouth of one of the canyons.”
Pemberton, J. R. Additions to the known avifauna of the Santa Barbara Islands The Condor 30(2):144-148, March-April 1928



ISLA GUADALUPE
ISLAND COLLECTOR INSTITUTION DATE NUMBER SPECIMEN
Isla Guadalupe Wilmot W. Brown MCZ May 13, 1906 MCZ-115939 Falco sparverius sparverius Birds
Isla Guadalupe Wilmot W. Brown MCZ May 15, 1906 MCZ-306176 Falco sparverius sparverius Birds
Isla Guadalupe Wilmot W. Brown MCZ June 10, 1906 MCZ-306169 Falco sparverius sparverius Birds
Isla Guadalupe Wilmot W. Brown MCZ June 15, 1906 MCZ-306177 Falco sparverius sparverius Birds
Isla Guadalupe Wilmot W. Brown MCZ June 16, 1906 MCZ-306167 Falco sparverius sparverius Birds
Isla Guadalupe Wilmot W. Brown MCZ June 16, 1906 MCZ-306173 Falco sparverius sparverius Birds
Isla Guadalupe Wilmot W. Brown MCZ June 19, 1906 MCZ-115940 Falco sparverius sparverius Birds
Isla Guadalupe Wilmot W. Brown MCZ June 19, 1906 MCZ-306166 Falco sparverius sparverius Birds
Isla Guadalupe Wilmot W. Brown MCZ June 19, 1906 MCZ-306168 Falco sparverius sparverius Birds
Isla Guadalupe Wilmot W. Brown MCZ June 19, 1906 MCZ-306170 Falco sparverius sparverius Birds
Isla Guadalupe Wilmot W. Brown MCZ June 19, 1906 MCZ-306171 Falco sparverius sparverius Birds
Isla Guadalupe Wilmot W. Brown MCZ June 19, 1906 MCZ-306172 Falco sparverius sparverius Birds
Isla Guadalupe Wilmot W. Brown MCZ June 19, 1906 MCZ-306174 Falco sparverius sparverius Birds
Isla Guadalupe Wilmot W. Brown MCZ June 19, 1906 MCZ-306175 Falco sparverius sparverius Birds
Isla Guadalupe R. H. Beck AMNH July 23, 1912 AMNH-750558 Falco sparverius sparverius Birds
Isla Guadalupe R. H. Beck AMNH July 23, 1912 AMNH-750558 Falco sparverius sparverius Birds
Isla Guadalupe R. H. Beck AMNH July 24, 1912 AMNH-750558 Falco sparverius sparverius Birds
Isla Guadalupe R. H. Beck AMNH July 26, 1912 AMNH-750558 Falco sparverius sparverius Birds
Isla Guadalupe R. H. Beck AMNH July 26, 1912 AMNH-750558 Falco sparverius sparverius Birds
Isla Guadalupe R. H. Beck AMNH August 6, 1912 AMNH-750558 Falco sparverius sparverius Birds
Isla Guadalupe R. H. Beck AMNH August 8, 1912 AMNH-750558 Falco sparverius sparverius Birds
Isla Guadalupe R. H. Beck AMNH August 15, 1912 AMNH-750558 Falco sparverius sparverius Birds
Isla Guadalupe H. H. Kimball UCLA June 27, 1914 UCLA-23947 Falco sparverius sparverius Birds


ISLA TODOS SANTOS
ISLAND COLLECTOR INSTITUTION DATE NUMBER SPECIMEN
Isla Todos Santos C. C. Lamb MVZ January 11, 1927 MVZ-49814 Falco sparverius sparverius Birds
Isla Todos Santos C. C. Lamb MVZ January 14, 1927 MVZ-49815 Falco sparverius sparverius Birds