16 PACIFIC COAST AVIFAUNA No. 11 
TSG) Colymbus nigricollis californicus (Heermann) 
AMERICAN EARED GREBE 
Synonyms—Podiceps californicus; Podiceps auritus californicus; Dytes 
auritus var. californicus; Dytes nigricollis californicus; Podicipes californicus ; 
Colymbus nigricollis; Colymbus californicus; Colymbus auritus, part; Califor- 
nia Grebe. 
Status—Breeds commonly on many of the elevated lakes along the east 
side of the Sierras; also south to Elizabeth Lake, Los Angeles County (A. K. 
Fisher, N. Amer. Fauna no. 7, 1893, p. 12), Bear Lake, San Bernardino Moun- 
tains (J. Grinnell, Univ. Calif. Publ. Zool., v, 1908, p. 51); San Jacinto Lake, 
Riverside County (Willett and Jay, Condor, xi, 1911, p. 157), and casually to 
Escondido, San Diego County (Sharp, Condor, 1x, 1907, p. 85). Winters abund- 
antly on the ocean along our entire coast, and in smaller numbers on various 
bodies of water inland throughout the state. Noted at Owens Lake up to June 
(A. K. Fisher, loc. cit.). Occurs most widely during the period of dissemina- 
tion immediately succeeding the breeding season. 
5 (6) Podilymbus podiceps (Linnaeus) 
PIED-BILLED GREBE 
Synonyms—Podilymbus lineatus; Podilymbus carolinensis; Podilymbus 
podicipes; Lineated Diver; Thick-billed Grebe. 
Status—Fairly common breeding species on the smaller bodies of fresh 
water both east and west of the Sierras; breeds south as far as San Jacinto 
Lake, Riverside County (Willett and Jay, Condor, xm, 1911, p. 157), and 
Escondido, in San Diego County (Sharp, Condor, rx, 1907, p. 86). More gener- 
ally and abundantly distributed throughout the state as a migrant; small num- 
bers remain through the winter in the San Joaquin-Sacramento basin (sey- 
eral records), on Tomales Bay (J. and J. W. Mailliard, MS), on San Franciseo 
Bay (Belding, MS), and in the San Diegan district (Willett, Pac. Coast Avif. 
no. 7, 1912; p: 10). 
6 (7) Gavia immer (Briinnich) 
Common Loon 
Synonyms—Gavia imber; Urinator imber; Colymbus torquatus; Colymbus 
glacialis; Great Northern Diver. 
Status—Common winter visitant to the ocean and bays along the whole 
length of our coast; also to various bodies of water inland, even to the Colorado 
River (Mus. Vert. Zool.). Occurs sparingly in summer on elevated lakes in the 
northern Sierra Nevada: recorded as breeding on certain small lakes near 
Mount Lassen (Townsend, Proc. U. 8. Nat. Mus., x, 1887, p. 190), and at Eagle 
Lake (Henshaw, Rep. Wheeler Surv., 1879, p. 333). 
