INTRODUCTION Ixxiii 



Tachycineta bicolor : White-bellied Swallow. — Not very common. 



Hiparia riparia : Bank Swallow. — Tolerabh' common. 



Stelgidopteryx serripennis : Kougli-winged Swallow. — Tolerably conmion. 



Ampelis garrulus : Bohemian AVaxwing-. — Rare. 



Ampelis cedroruvi : Cedar Waxwing-. — Rare. 



Lanius borealis : Northern Shrike. — Regular winter visitor. 



Lanius ludovicianus excubitorides: White-rumped Shrike. — Common sum- 

 mer resident. 



Vireo oUvaceus : Red-eyed Vireo. — Not common. 



Vireo gilvus swainsoni : ^ Western Warbling- Vireo. — Common. 



Helminthophila celata : Orange-crowned Warl>ler. — Common migrant. 



Helininthophila peregrina : Tennessee Warbler. — Rare. 



Coinpsot/ilypis americana usnece : Northern Parula Warbler. — Rare. 



DendroUa (estiva : 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. 



Seinrus noveboracensis notabilis : Grinnell Water-Thrush. — Rare visitor. 



Geothlypis tolmiei : Macgillivray Warbler. — Common migrant. 



Geothlypis trichas occidentalis. — Western Yellow-throat. — Common mi- 

 g-rant. 



Setophaga ruticilla : Redstart. — Tolerably common migrant. 



Anthxis spragueii : Sprag'ue Pipit. — Common migrant. 



Cinclus mexicanus : Dipper. — Rare visitor. 



Oroscoptes vtontanus : Sage Thraslier. — Common migrant. 



Mimus polyglottos leucopterus : Western Mockingbird. — Regular summer 

 resident ; a few pairs breed. 



Galeoscoptes caroliiiensis : Catbird. — Tolerably common migrant. 



Toxostoma rufum : Brown Thrasher. — Common; breeds. 



Salpinctes obsoletiis: Rock ^^'ren. — Conmion migrant. 



Troglodytes ai'don aztecus : Western House Wren. — Tolerably common 

 migrant. 



Certhia fa miliar is mnntana : Rocky Mountain Creeper. — Casual visitor. 



Sitta carolinensis aculeata : Slender-billed Nuthatch. — Rare visitor. 



iSitta canadensis : Red-breasted Nuthatch. — Occasional visitor. 



Sitta pygntcea : Pygmy Nuthatch. — Rare visitor. 



Parus gatnbeii : Mountain Chickadee. — A flock occasionally visits the 

 city. 



JRegtdus calendula : Rul)y-crowned Kinglet. — Tolerably regular spring- 

 migrant. 



Myadestes tnwnsendii : Townscnd Solitaire. — Regular migrant : tolerably 

 common. 



llylocichhi ustulata sirainsoni : Olive-backed Thrush. — Common migrant. 



Mf^rtiia iiiigratoria : Robin. — Tolerably common summer resident. 



Merula iiiigratoria jtropinqua : Western Kobin. — Frequently winters. 



Sialia sialis : Bluebird. — Occa.sionally seen both in winter and in midsum- 

 mer ; may breed. 



Sialia arctica : Mountain liluebird. — .\bundant l)reeder tor species. 



' r. ,jilriis of Check-List. (F. M. IJ.) 



