INTRODUCTION lv 
Zamelodia melanocepJiala : Black-headed Grosbeak. — Abundant spring 
and summer visitant; departs after nesting. 
Cyanospiza amcena : Lazuli Bunting. — A common summer visitant during 
nesting season. 
Piranga ludoviciana: Louisiana Tanager. — Occurs in Santa Cruz Moun¬ 
tains during migrations. 
Progne subis hesperia : Western Martin. — Reported from Mount Hamilton 
range. 
Petrochelidon lunifrons : Cliff Swallow. — Common summer visitant. 
Hirundo erythrogastra : 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 Jos^ (J. Van Denburgh) ; migrant at Palo Alto. 
Ampelis cedrorum : Cedar Waxwing. — Irregular winter visitant. 
Phainopepla nitens: Phainopepla. — Recorded from near San Jos£. 
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: Cassin Vireo. — Summer visitant in Santa Cruz 
Mountains. 
Helminthophila celata lutescens: Lutescent Warbler. — Summer visitant on 
chaparral slopes of Santa Cruz Mountains. 
Dendroica cestiva : Yellow Warbler. — Abundant summer resident. 
Dendroica auduboni: Audubon Warbler. — Abundant winter visitant. 
Dendroica coronata: Myrtle Warbler. — Rather common winter visitant. 
Dendroica nigrescens: Black-throated Gray Warbler. — Reported from 
Mount Hamilton Range. 
Dendroica townsendi: Townsend Warbler. — Common winter visitant in 
Santa Cruz Mountains and about Monterey Bay. 
Dendroica occidentals: Hermit Warbler.—Occurs rarely during migra¬ 
tions. 
Geothlypis tolmiei: Tolmie Warbler. — Recorded from Los Gatos; rare. 
Geothlypis trichas sinuosa : 1 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: Californian 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 JosA 
1 Occidentals of authors. This form has not been acted upon by the A. O. U. com¬ 
mittee. It is nearer arisela than occidentalis. 
