62 PACIFIC COAST AVIFAUNA No. 11 
tion of the Pacific Coast region of the United States concentrates in winter into 
west-central and southern California, but that within this area there is much 
yacillation in numbers from year to year locally, due to varying food-supply in 
different places. (For full account, see J. Grinnell, Condor, xv, 1918, pp. 25-40). 
181 (316a) Zenaidura macroura marginella (Woodhouse) 
WESTERN MourNING DOVE 
Synonyms—Columba carolinensis; Ectopistes carolinensis; Zenadura caro- 
linensis; Zenaidura macroura; Zenadura macroura carolinensis ; Common Dove ; 
Carolina Dove. 
Status—Abundant in spring, summer and fall in the Lower and Upper So- 
noran zones, and in small numbers up through Transition. Occurs practically 
throughout the state save on the highest mountains; arid and humid belts are 
equally inhabited, and even the islands farthest out to sea. Winters commonly 
in the valleys of the San Diegan district, and in small numbers irregularly north 
through the central California valleys west of the Sierras. 
182 (319a) Melopelia asiatica trudeaui (Audubon) 
WHITE-WINGED DovE 
Synonyms—WMelopclia leucoptera; Melopelia asiatica. 
Status—Fairly common summer visitant to the California side of the lower 
Colorado River below the Laguna Dam (J. Grinnell, Univ. Calif. Publ. Zool., xn, 
1914, p. 123; Morcom, Ridgw. Orn. Club, Bull. no. 2, 1887, p. 40) ; recorded also 
farther up the river: Ehrenberg and Needles (F. Stephens, Condor, v, 1903, p. 
77) ; and, perhaps doubtfully, from Twenty-nine Palms, Mohave Desert (Heller, 
Condor, 11, 1901, p. 100). Specimen, doubtless a straggler, taken near Escon- 
dido, San Diego County, about September 25, 1911 (J. S. Dixon, Condor, x1v, 
1912, p. 196). 
183 (320a) Chaemepelia passerina pallescens Baird 
Mexican GrounD Dove 
Synonyms—Chamaepelia passerina; Columbigallina passerina. 
Status—Rare and irregular visitant southerly. Recorded only as follows: 
Fort Yuma (Coues, Proc. Acad. Nat. Sci. Phila., 1866, p. 93); Colorado River 
near Ehrenberg, in August (F. Stephens, Condor, vy, 1903, p. 77) ; San Gabriel 
(“‘several’’), Monterey, and San Francisco, May (Baird, Brewer, and Ridgway, 
Fist. N. Amer. Bds., 11, 1874, pp. 390, 522) ; Banning, Riverside County, in Oc- 
tober, and San Pasqual, San Diego County (Willett, Pac. Coast Avif. no. 7, 1912, 
p. 44) ; Pescadero, San Mateo County, a flock and one specimen obtained, Febru- 
ary 27, 1898 (Littlejohn, Bull. Cooper Orn. Club, 1, 1899, p. 73). 
184 (324) Gymnogyps californianus (Shaw) 
CaAuirorNnIA CONDOR 
Synonyms—Sarcoramphus californianus; Vultur californianus; Oenops 
