INTRODUCTION 
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Tachycineta bicolor : White-bellied Swallow. — Not very common. 
Hiparia riparia: Bank Swallow. — Tolerably common. 
Stelgidopteryx serripennis : Iiougli-winged Swallow. — Tolerably common. 
Ampelis garrulus : Bohemian Waxwing. — Rare. 
Ainj)elis cedrorum: Cedar Waxwing. — Rare. 
Lanius borealis: Northern Shrike. — Regular winter visitor. 
Lanius ludovicianus excubitorides: White-rumped Shrike. — Common sum¬ 
mer resident. 
Vireo olivaceus: Red-eyed Vireo. — Not common. 
Vireo gilvus swainsoni : 1 Western Warbling Vireo. — Common. 
Ilehninthophila celata : Orange-crowned Warbler. — Common migrant. 
Helminthophila peregrina: Tennessee Warbler. — Rare. 
Compsothfypis americana usnece : Northern Parula Warbler. — Rare. 
Dendroica cestiva : Yellow Warbler. — Common summer resident. 
Dendroica coronata : Yellow-rumped Warbler. — Common migrant. 
Dendroica auduboni: Audubon Warbler. — Common migrant. 
Dendroica striata: Black-poll Warbler. — Tolerably common migrant. 
Seiurus noveboracensis notabilis : Grinnell Water-Thrush. — Rare visitor. 
Geothlypis tolmiei: Macgillivray Warbler. — Common migrant. 
Geothlypis trichas occidentalis. — Western Yellow-throat. — Common mi¬ 
grant. 
Setophaga ruticilla: Redstart. — Tolerably common migrant. 
Anthus spragueii : Sprague Pipit. — Common migrant. 
Cinclus mexicanus : Dipper. — Rare visitor. 
Oroscoptes montanus : Sage Thrasher. — Common migrant. 
Mimus polyglottos leucopterus: Western Mockingbird.—Regular summer 
resident; a few pairs breed. 
Galeoscqptes carolinensis : Catbird. — Tolerably common migrant. 
Toxostoma rufum : Brown Thrasher. — Common; breeds. 
Salpinctes obsoletus : Rock Wren. — Common migrant. 
Troglodytes aedon aztecus: Western House Wren. — Tolerably common 
migrant. 
Certhia familiaris montana: Rocky Mountain Creeper. — Casual visitor. 
Sitta carolinensis aculeata : Slender-billed Nuthatch. — Rare visitor. 
Sitta canadensis: Red-breasted Nuthatch. — Occasional visitor. 
Sitta pygmcea: Pygmy Nuthatch. — Rare visitor. 
Parus gambeli: Mountain Chickadee. — A flock occasionally visits the 
city. 
Begulus calendula: Ruby-crowned Kinglet. — Tolerably regular spring 
migrant. 
Myadestes townsendii: Townsend Solitaire. — Regular migrant; tolerably 
common. 
Hylocichla ustulata swainsoni: Olive-backed Thrush. — Common migrant. 
Merula migratoria: Robin. — Tolerably common summer resident. 
Merula migratoria propinqua : Western Robin. — Frequently winters. 
Sialia sialis: Bluebird. — Occasionally seen both in winter and in midsum¬ 
mer ; may breed. 
Sialia arctica: Mountain Bluebird. — Abundant breeder for species. 
1 V. gilvus of Check-List. (F. M. B.) 
