10 PACIFIC COAST AVIFAUNA No. 7 



country. In winter occnr.s along the coasts as well as on inland bodies of water. 

 Breeds mostly in May. 



Antonin Jay took a set of eight egg's, advanced in incubation, at Xigger 

 Slough, Los Angeles County, May 17, 1903, and a set of seven, incubation 

 commenced, in the same locality, June 7. the same year. I found the species 

 breeding plentifully at San Jacinto Lake, Riverside County. May 27 and 28, 1911. 

 At this date most of the eggs were hatched (Condor xin, 1911. 157). C. S. 

 Sharp has taken fresh eggs in the vicinity of Escondido. San Diego County, 

 from May 3 to June 24 (Condor ix. 1907, 86). 



6. (7) Gavia immer (Brijnnich). Common Loon. 



Fairly common winter visitant along the coast south to Lower California ; 

 sometimes on inland lakes and ponds. Arrives in October and leaves during 

 the latter part of April and first part of ]\lay. Occasional in summer. I have 

 an adult female in winter plumage taken at Bolsa Chica. Orange County. No- 

 vember 10. 1907. and an adult male in almost full breeding plumage taken at 

 Alamitos, Los Angeles County, May 4. the same year. I also saw two birds of 

 this species in immature plumage fishing near the pier at Manhattan P)each. Los 

 Angeles County. July 6, 1911, and noted one bird at Bolsa Chica, July 24, 1911. 

 J. G. Cooper found the Loon abundant in winter in San Diego Bay, some re- 

 maining as late as May (B., Br. & Ridg., W.B.N.A. ii, 1884, 447). 



7. (10) Gavia pacifica (Lawrence). Pacific Loon. 



Common winter visitant on the ocean. Particularly abundant around the 

 Santa Barbara Islands. Arrives in September and remains until late in May. 



8. (11) Gavia stellata (Pontoppiclan ). Red-throatkd Loon. 



Regular winter visitant along the coast. Arrives at about the same time as 

 the preceding species, but the majority appear to depart about a month earlier in 

 the spring (Beck, Proc. Cal. Acad. Sci., ser. 4, vol. iii, 1910. 58). I have taken 

 several specimens of this loon along the Los Angeles County coast in winter. A. 

 L. Heermann obtained one example at San Diego (Pac. R. R. Rep. x, 1859, 76), 

 and J. G. Cooper secured a male at Santa Barbara, April 27, 1863 (B., Br. & 

 Ridg.. W.B.N.A. II. 1884. 458). 



9. (12) Lunda cirrhata (Pallas). Tufted Puffin. 



Common resident on Anacapa, Santa Cruz and San Miguel islands and 

 probably also on Santa Rosa. Less common on Santa Barbara and San Nicolas. 

 H. W. Henshaw noted this species nesting on Santa Cruz Island in the sum- 

 mer of 1875 (Ann. Rep. Ch. En. U. S. G. S., App. JJ, 1876. 278). J. S. Appleton 

 and H. C. Burt took fresh eggs on San Miguel Island. June 6, 1906, and in 

 June, 1910, I found them breeding commonly there and also on Anacapa, 

 (Condor xii, 1910, 172). C. B. Linton saw a Tufted Puffin on San Nicolas 

 Island in May. 1910. and I saw one in the same locality, June IZ. 1911. The 

 species lias been noted on Santa Barbara Island by various observers. 



10. (15) Cerorhinca monocerata (Pallas). Rhinoceros Auklet. 

 Common winter visitant along the coast, south to Lower California. Arrives 



in October and may be found until early May. I have taken many specimens 



