INTRODUCTION Ixiii 



Wilsonia pusilla pileolata : Pileolated Warbler. — Abundant migrant 

 through the valley ; conuuou summer visitant to the willow bottoms. 



Anthus pensilvanicus : American Pipit. — Common winter visitant to the 

 lowlands. 



Cindus mexicanus : American Dipper. — Rare resident of the mountain 

 canyons. 



Mimus polyglottos leucopterus : Western Mockingbird. — Abundant resident 

 of the valley, especially on the mesas. 



Toxostoma rediriviim pasadenense : Pasadena Thrasher. — Common resi- 

 dent of brush lands anywhere. 



Ileleodytes brunneicapillus: Cactus Wren.- — Rare resident locally on the 

 mesas. 



Salpinctes obsoletus : Rock Wren. — Fairly common winter visitant to the 

 valley. 



Catherpes mexicanus punctulatiis : Dotted Canyon Wren. — Fairly common 

 resident of the mountain canyons. 



Thryomanes bewickii charienturus : San Dieg-an Wren. — Common resident of 

 the mountains ; common winter visitant to the brush lands in the valley. 



Troglodytes ai'don parkmanii : Parkman Wren. — Fairly common summer 

 visitant everywhere. 



Olbiorchilus hiemalis parijicus : Western Winter Wren. — Rare midwinter 

 visitant to the mountains. 



Cistothorus palitstris paludicola : Tule Wren. — Common resident of the 

 lowland marshes. 



Certhia familiaris zelotes : Sierra Creeper. — Fairly common resident on 

 the mountains. 



Sitta carolinensis aculeata : Slender-billed Nuthatch. Fairly common resi- 

 dent on the mountains. 



Sitta canadensis : Red-breasted Nuthatch. — Irregular winter visitant to 

 the mountains. 



Sitta jiygmcea : Pygmy Nuthatch. — Fairly common resident of the higher 

 mountains. 



Pants inornatus : Plain Titmouse. — Common resident of the oak regions. 



Pants gambeli : Mountain Chickadee. — Common resident on the moun- 

 tains. 



Chanuea fasciata : Wren-Tit. — Common resident of brush lands every- 

 where. 



Psaltriparns minimus californicus : California Bush-Tit. — Abundant resi- 

 dent of tlie oak regions of the valley and foothills. 



Pegulus satrapa olivaceus : AVcstein Golden-crowned Kinglet. — Rare mid- 

 winter visitant to the inoiiiitaiiis and mesas. 



Hegulus calendula: Ruby-crowned Kinglet. — Abundant winter visitant 

 everywhere. 



Polioptila c(trulea obscnra : Western Gnatcatcher. — Common resident 

 everywliere. 



Polioptda calif or nica : RLick-tailed Gnatcatcher. — Rare resident locally 

 on brnsliy mesas. 



Myadestes townstndii : Townsend Solitaire. — Fairly common winter visit- 

 ant t<» the mountains. 



Ilylocichla nstulata : Rus.set-backed Thrush. — Common summer visitant 

 to the willow bottoms ; migrant along the foothills. 



Ilylocirfila guttatd : -Vlask.-i Hermit Tlinish. — .Vbnndant wintei- visitant 

 everywhere. 



Ilylocichla guttata slt^vini : ^ Monterey Hermit Thrush. — Rare spring 

 migrant over the mesas. 



> Not yet acted on by A. O. U. cominittff. (F. M. B.) 



