INTRODUCTION Iv 



Zam/elodia melanocephala : Black-headed Grosbeak. Abundant spring 

 and summer visitant ; departs after nesting. 



Cyanospiza amn-na : Lazuli Bunting'. A common summer visitant during 

 nesting 1 season. 



Piranga ludoviciana : Louisiana Tauager. Occurs in Santa Cruz Moun- 

 tains during' migrations. 



Progne subis hesperia : Western Martin. Reported from Mount Hamilton 



range. 



Petrochelidon lunifrons : CHff Swallow. Common summer visitant. 



Hirundo ert/thrt>(/d*tra : Barn Swallow. Summer resident. 



Tachycineta bicolor : Tree Swallow. Abundant in spring and summer : 

 rare in winter. 



Tachycineta thalassina lepida : Northern Violet-green Swallow. Common 

 summer visitant. 



Stelgidopteryx serripennis : Rough-winged Swallow. Reported as breed- 

 ing at San Jose* (J. Van Denburgh) ; migrant at Palo Alto. 



, 1 mpelis cedrorum : Cedar Waxwing. Irregular winter visitant. 



Phainopepla nitens : Phainopepla. Recorded from near San Jose*. 



Lanius ludovicianus gambeli : California Shrike. Abundant resident in 

 valley. 



Vireo gilvus : Warbling Vireo. Common summer visitant. 



Vireo huttoni : Hutton Vireo. Abundant resident in Santa Cruz Moun- 

 tains ; common summer visitant in valley. 



Vireo solitarius cassinii : Cassiii Vireo. Summer visitant in Santa Cruz 

 Mountains. 



Helminthophila celata lutescens : Lutescent Warbler. Rummer visitant on 

 chaparral slopes of Santa Cruz Mountains. 



Dendroica (.estiva : Yellow Warbler. Abundant summer resident. 



Dendroica auduboni : Audubon Warbler. Abundant Aviuter visitant. 



Dendroica coronata : Myrtle Warbler. Rather common winter visitant. 



Dendroica nigrescens : Black-throated Gray Warbler. Reported from 

 Mount Hamilton Range. 



Dendroica toicnsendi : Townsend Warbler. Common winter visitant in 

 Santa Cruz Mountains and about Monterey Bay. 



Dendroica occidentalis : Hermit Warbler. Occurs rarely during migra- 

 tions. 



Geothlypis tolmiei : Tolmie Warbler. Recorded from Los Gatos ; rare. 



Geothlypis trichas sinitosa : l Western Yellow-throat. Breeds about edges 

 of marshes of San Francisco Bay. 



Icteria virens longicauda : Long-tailed Chat. Summer visitant along water- 

 courses. 



Wilsonia pusilla pileolata : Pileolated Warbler. Common in copses and 

 willow thickets. 



Anthus pensilvanicus : American Pipit. Abundant during winter months. 



Cinclus mexicanus: Water Ouzel. Permanent resident on streams in 

 Santa Cruz Mountains. 



Mimus polyglottos leucopterus: Western Mockingbird. Occasional visitant 

 at Stanford University. 



Toxostoma redivivum : Calif ornian Thrasher. Common resident in thickets. 



Salpinctes obsoletus : Rock Wren. Permanent resident in eastern and 

 southern valley foothills, in dry. rocky places. 



Catherpes mexicanus punctulatus : Dotted Canyon Wren. Breeds in foot- 

 hills east of San Jose*. 



1 Occidentalis of authors. This form has not been acted upon by the A. O. U. com- 

 mittee. It is nearer arizela than occidentalis. 



