xlviii INTRODUCTION 



Sitta carol inensis acideata : Slender-billed Nuthatch. — Common. 



Sitta canadensis : Red-breasted Nuthatch. — Common fall migrant ; does 

 not seem to be so abundant in spring-. 



Parus atricapillus occidentalis : Oregon Chickadee. —'Very common resi- 

 dent. 



Poriis rufescens : Chestnut-backed Chickadee. — Common resident. 



Psaltriparus minimus : Bush-Tit. Abundant resident. 



Regulus satrapa olivaceus : Western Golden-crowned Kinglet. — Abundant 

 winter resident. 



Pegulus calendula : Ruby-crowned Kinglet. — Common migrant. 



Myadestes townsendii : Townsend Solitaire. — Seen once or twice in the 

 residence part of the city. 



Hylocichla ustulata : Russet-backed Thrush. — Common in the city and 

 wooded thickets along- the river. 



Hylocichla guttata : Alaska Hermit Thrush. — A few seen . during migra- 

 tions. 



Merula migratoria propinqua : Western Robin. — Abundant; a few win- 

 ter. 



Ixoreus ncevius : Varied Thrush. — Abundant winter resident. 



Sialia mexicana occidentalis : Western Bluebird. — Common. 



LIST OF WATER BIRDS OF SAN FRANCISCO BAY. 

 By William H. Kobbk. 



^chmophorus occidentalis : Western Grebe. — Abundant throug-hout the 

 winter and spring-. 



Colymhus holbaellii : Holboell Grebe. — Rare ; two winter visitants taken. 



Coli/mbus auritus : Horned Grebe. — Common winter visitant. 



Colymhus nigricollis californicus : American Eax'ed Grebe. — Winter vis- 

 itant, most commonly at Oakland and Alameda. 



Podilymhus p)odiceps : Pied-billed Grebe. — Common in the fall; probably 

 resident in favorable situations. 



Gavia imher : Loon. — Spring- mig-rant. 



Gavia pacijica : Pacific Loon. — Common winter visitant. 



Gavia lumme : Red-throated Loon. — Winter visitant ; abundant about 

 Oakland. 



C yclorrhynchus p)sittacidus : Paroquet Auklet. — Winter visitant. 



Synthliboramphus antiquus : Ancient Murrelet. — Winter visitant. 



Brachyramphus marmoratus : Marbled Murrelet. — Taken off Goat Island 

 by Bryant. 



Uria troile calif ornica : California Murre. — Visitant ; mainly fall, winter, 

 and spring- ; probably occurs in summer. 



Stercorarius parasiticus : Parasitic Jaeg-er. — Fall mig-rant. 



Rissa tridactyla pollicaris : Pacific Kittiwake. — Winter visitant. 



Larus delawarensis : Ring--billed Gull. — Common about Oakland from 

 the last of autumn until summer. 



Larus glaucus : Glaucous Gull. — One noted by Cooper (Proc. Col. Acad- 

 emy of Sciences, iv. 9-10) and one seen by Kobb^. 



Larus glaucescens : Glaucous-wing-ed Gull. — Abundant winter visitant. 



Larus occidentalis : Western Gull. — Abundant resident. 



Larus argentatus : Herring- Gull. — Abundant winter visitant. 



Larus vegce : Vega Gull. — Abundant winter visitant. 



Larus californicus : California Gull. — Abundant resident. 



Larus hrachyrhynchus : Short-billed Gull. — Abundant from November to 

 February. 



