1915 BIRDS OF CALIFORNIA 35 
N. Amer. Bds., 4th ed., 1889, p. 66) ; Alamitos, Los Angeles County (Cooke, bull. 
26, Biol. Surv., U. 8. Dept. Agric., 1906, p. 38) ; Buena Vista Lake (Linton, Con- 
dor, x, 1908, p. 50) ; Tulare Lake (Goldman, Condor, x, 1908, p. 202) ; Los Bafios, 
Merced County, and Pennington, Sutter County (H. C. Bryant, Condor, xv1, 
1914, pp. 220, 223, 227). 
82 (144) Aix sponsa (Linnaeus) 
Woop Duck 
Synonym—Summer Duck. 
Status—Now rather rare as a resident in the Sacramento and San Joaquin 
valleys and westwardly toward the coast; formerly common and well distributed 
throughout the lowlands west of the Sierras. Southernmost station: Ramona, San 
Diego County (Sharp, Condor, vii, 1906, p. 75). Breeding stations are: Forest 
Lake, San Joaquin County (Sampson, Condor, m1, 1901, p. 95); Isleton, Sacra- 
mento County (R. 8S. Wheeler, Nidologist, rv, 1897, p. 110); Lake Tahoe (Ray, 
Osprey, v, 1901, p. 116); Ventura County (Cooke, bull. 26, Biol. Sury., U. S. 
Dept. Agric., 1906, p. 40). For general statement as to status in California, see 
J. Grinnell and H. C. Bryant, Calif. Fish & Game, 1, 1915, pp. 49-52. 
83 (146) Marila americana (Eyton) 
REDHEAD 
Synonyms—Aythya americana; Aythya erythrocephala; Nyroca americana; 
Nyroca ferina; Nyroca erythrocephala; Fuligula ferina americana. 
Status—Common resident in suitable localities throughout the state; most 
abundantly and widely distributed in winter. Recorded breeding as follows: 
Lower Klamath and Tule lakes, on Oregon line (H. C. Bryant, Condor, xvi, 1914, 
pp. 229, 231) ; Sacramento (Ridgway, Auk, 11, 1886, p. 403) ; Sacramento Valley 
(Heermann, Pac. R. R. Rep., x, 1859, p. 70) ; Ventura County (Evermann, Auk, 
m, 1886, p. 89) ; Buena Vista Lake (Linton, Condor, x, 1908, p. 197) ; Los Ange- 
les (Davie, Nests & Eggs N. Amer. Bds., 4th ed., 1889, p. 68) ; Nigger Slough, 
Los Angeles County (Willett, Pac. Coast Avif. no. 7, 1912, p. 24); San Jacinto 
Lake, Riverside County (Willett and Jay, Condor, xm, 1911, p. 158). 
84 (147) Marila valisineria (Wilson) 
CANVAS-BACK 
Synonyms—A ythya vallisneria; Nyroca valisneria; Fuligula vallisneria. 
Status—Common winter visitant both interiorly and along the seacoast. 
Most numerous, particularly in early spring, about salt water bays and coastal 
marshes. Many records, throughout the whole length of the state. 
85 (148) Marila marila (Linnaeus) 
GREATER Scaup Duck 
Synonyms—Aythya marila; Aythya marila nearctica: FPuligula marila: 
Fulix marila; Big Black-head; Broadbill. 
Status—Fairly common winter visitant on salt and brackish water coast- 
