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California Least Vireo, Vireo belli pusillus 514 



Calaveras Warbler, Vermivora ruficapilla gutturalis 516 



Orange-crowned Warblers, Vermivora celata 519 



Lutescent Warbler, Vermivora celata lutescens 



Rocky Mountain Orange-crowned Warbler, Vermivora celata orestera 



California Yellow Warbler, Dendroica aestiva brewsteri 521 



Alaska Myrtle Warbler, Dendroica coronata hooveri 523 



Audubon Warbler, Dendroica auduboni auduboni 524 



Black-throated Gray Warbler, Dendroica nigrescens 529 



Townsend Warbler, Dendroica townsendi 531 



Hermit Warbler, Dendroica occidentalis 532 



Tolmie Warbler, Oporornis tolmiei. 534 



Yellowthroats, Geothlypis trichas 538 



Western Yellowthroat, Geothlypis trichas occidentaUs 



Tule Yellowthroat, Geothlypis trichas scirpicola 



Long-tailed Chat, Icteria virens longicauda 539 



PUeolated Warblers, Wilsonia pusilla 540 



Golden Pileolated Warbler, Wilsonia pusilla chryseola 



Alaska Pileoated Warbler, Wilsonia pusilla pileolata 



American Pipit, Anthus rubescens 542 



American Dipper, Cinclus mexicanus unicolor 543 



Sage Thrasher, Oreoscoptes montanus 546 



Western Mockingbird, Mimus polyglottos leucopterus 547 



California Thrasher, Toxostoma redivivura redivivum 548 



Rock Wren, Salpinctes obsoletus obsoletus 550 



Dotted Canon Wren, Catherpes mexicanus punctulatus 552 



San Joaquin Bewick Wren, Thryomanes bewicki drymoecus 555 



Western House Wren, Troglodytes aedon parkmani 556 



Western Winter Wren, Nannus hiemalis pacificus 558 



Western Marsh Wren, Telmatodytes palustris plesius 560 



Sierra Creeper, Certhia familiaris zelotes 561 



Slender-billed Nuthatch, Sitta carolinensis aculeata 564 



Red-breasted Nuthatch, Sitta canadensis 568 



Pigmy Nuthatch, Sitta pygmaea pygmaea 571 



Plain Titmouse, Baeolophus inornatus inornatus 572 



Short-tailed Mountain Chickadee, Penthestes gambeli abbreviatus 574 



California Bush-tit, Psaltriparus minimus californicus 579 



Lead-colored Bush-tit, Psaltriparus plumbeus 582 



PaUid Wren-tit, Chamaea fasciata henshawi 582 



Western Golden-crowned Kinglet, Regulus satrapa olivaceus 586 



Western Ruby-crowned Kinglet, Regulus calendula cineraccus 589 



Western Gnatcatcher, Polioptila caerulea obscura 593 



Townsend Solitaire, Myadestes townsendi 595 



Russet-backed Thrush, Hylocichla ustulata ustulata 600 



Hermit Thrushes, Hylocichla guttata 602 



Sierra Hermit Thrush, Hylocichla guttata sequoiensis 



Alaska H(!rmit Thrush, Hylocichla guttata guttata 



Dwarf Hermit Thrush, Hylocichla guttata nanus 



Western Robin, Planesticus migratorius propinquus 605 



Northern Varied Thrush, Ixoreus nacvius moruloides 614 



Western Bluebird, Sialia mexicana occidentalis 615 



Mountain Bluebird, Sialia cunucoidcs 622 



fxiv] 



