Sept, 1914 
STATUS OF CERTAIN ISLAND FORMS OF SALFINCTES 
217 
southern Mexican and Central American forms of this genus are so imper- 
fectly known and understood, however, that any general treatment of the 
genus must be at this time regarded as tentative, and for the present it seems 
best to consider ohsoletus and guadeloupensis as specifically distinct. 
Specimens examined. — Salpinctes o. otsoletus: Nevada, 22; Arizona, 18; Oregon, 1. 
Mainland of California: Modoc County, 17; Amador County, 1; El Dorado County, 1; 
Alameda County, 2; Tehama County, 2; Kern County, 9; Tulare County, 2; Fresno 
County, 1; Ventura County, 2; Los Angeles County, 46; San Bernardino County, 30; 
Riverside County, 13; San Diego County, 1; Colorado River between Needles and Yuma, 
9. Island localities: San Clemente Island, 4; Santa Catalina Island, 2; Santa Barbara 
Island, 8; Santa Cruz Island, 6; San Miguel Island, 2; Coronado Islands, Lower Califor- 
nia, 5; San Benito Island, Lower California, 1; Cerros Island, Lower California, 1; Ilde- 
fonso Island, Lower California (east coast), 6. Salpinctes o. pulverius: San Nicolas 
Island, California, 34 (12 adults, 22 juveniles). Salpinctes g. guadeloupensis: Guadalupe 
Island, Lower California, 6 (5 adults, 1 juvenile). Salpinctes g. proximus: San Martin 
Island, Lower California, 1 adult. Total number of specimens, 253. 
LITERATURE CITED 
American Ornithologists’ Union Committee, J. A. Allen, Chairman and Editor. 
1910. Check-List of North American birds. Ed. 3, revised (New York, American 
Ornithologists’ Union), 430 pp., 2 maps. 
Grinnell, J. 
1898. The San Nicolas rock wren. Auk, xv, no. 3, pp. 237-239. 
1902. Check-list of California birds. Pacific Coast Avifauna, no. 3, pp. 1-92, 2 maps. 
Ridgway, R. 
1904. The birds of North and Middle America. U. S. Nation. Mus., Bull. 50, part 3, 
pp. XX -1-801, 19 pis. 
Willett, G. 
1912. Birds of the Pacific slope of southern California. Pacific Coast Avifauna, 
no. 7, pp. 1-122. 
Los Angeles, California, July i8, 1914. 
A SURVEY OF THE BREEDING GROUNDS OP DUCKS 
IN CALIFORNIA IN 1914 
By HAROLD C. BRYANT 
WITH NINE PHOTOGRAPHS BY THE AUTHOR 
(Contribution from the University of California Museum of Vertebrate Zoology*) 
CONTENTS 
Introduction 218 
Los Banos, Merced County, California 219 
Gridley, Butte County, California 227 
Link River, Klamath County, Oregon 228 
Tule Lake, Oregon and California 229 
Lower Klamath Lake, Oregon and California 230 
Numbers of ducks now and formerly.... 233 
Market hunting 233 
Local distribution of ducks in California 234 
Our native breeding stock of ducks as compared with the winter supply of migra- 
tory ducks 235 
Success and failure among nesting ducks 235 
♦The field work herein reported upon was made possible through kindly interest 
on the part of Associate Justice F. W. Henshaw, of San Francisco, and Fish and Game 
Commissioner M. J. Connell, of Los Angeles. These gentlemen and certain of their 
friends joined in furnishing the funds needed to defray the contingent expenses. — J. G. 
