INTRODUCTION Ixiii 



Wilsonia pusilla pileolata : Pileolated Warbler. — Abundant migrant 

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



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

 lowlands. 



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

 canyons. 



Mimus polyglottos leucopterus : Western Mockingbird. — Abundant resident 

 of the valley, especially on the mesas. 



Toxostoma redivivum pasadenense : Pasadena Thrasher. — Common resi- 

 dent of brush lands anywhere. 



Heleodytes hrunneicapillus : Cactus Wren. — Rare resident locally on the 

 mesas. 



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

 valley. 



Catherpes mexicamts punctulatiis : Dotted Canyon Wren. — Fairly common 

 resident of the mountain canyons, 



Thryomanes hewickii charienturus : San Diegan Wren. — Common resident of 

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



Troglodytes acdon parhmanii : Parkman Wren. — Fairly common summer 

 visitant everywhere. 



Olbiorchilus hiemalis pacijicus : Western Winter Wren. — Rare midwinter 

 visitant to the mountains. 



Cistothorus palustris 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 pygmcea : Pygmy Nuthatch. — Fairly common resident of the higher 

 mountains, 



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



Parus gamheli : Mountain Chickadee. — Common resident on the moun- 

 tains. 



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

 where. 



Psaltriparus minimus californirus : California Bush-Tit. — Abundant resi- 

 dent of tlie oak regions of the valley and foothills. 



Regidus satrapa olivaceus : Western Golden-crowned Kinglet. — Rare mid- 

 winter visitant to the mountains and mesas. 



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

 everywhere, 



Polioptila carulea ohscura: Western Gnatcatcher. — Common resident 

 everywhere. 



PolioptUa ndifornica : Black-tailed Gnatcatcher, — Rare resident locally 

 on brusliy mesas. 



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

 ant to the mountains. 



Ilylorichla ustulafa : Kusset-backod Thrush, — Common summer visitant 

 to the willow bottoms ; migrant along the footliills, 



Ilylorichla guttata : Alaska Hermit Thrush. — Abundant winter visitant 

 ev«'rv\vlu're. 



Ilylociclda guttata slevini : ^ Monterey Hermit Thrush, — Rare spring 

 migrant over the mesas. 



* Not yet acted on by A. O. U. committee. (F. M. B.) 



