lx INTRODUCTION 



Stellula calliope: Calliope Hummingbird. --Fairly common summer vis- 

 itant on the mountains. 

 Tyrannus verticalis : Arkansas Kingbird. Common summer visitant to 



the valley. . . 



Tyrannus vociferans : Cassin Kingbird. Fairly common winter visitant 



to the valley. 



Myiarchus cinerascens : Ash-throated Flycatcher. - - Fairly common sum- 

 mer visitant in the oak and foothill regions. 



Sai/ornis sat/a : Say Phoebe. Common winter visitant to the valley. 



Sdyarnis nigricans semiatra : Western Black Pho3be. Common resident 

 of the valley. 



Contopus borealis : Olive-sided Flycatcher. Fairly common summer vis- 

 itant on the mountains ; migrant through the valley. 



Contopus richarclsonii : Western Wood Pewee. Common summer visitant 

 to the canyons and mountains. 



Empidonax diffidlis : Western Flycatcher. Common summer visitant to 

 the mountain canyons. 



Empidonax traillii /Traill Flycatcher. Common summer visitant to the 

 willow bottoms. 



Empidonax hainmomli : Hammond Flycatcher. Fairly common migrant 

 along the foothills. 



Empidonax griseus : Gray Flycatcher. Rare winter visitant to the val- 

 ley. 



Otocoris alpestris actia : California Horned Lark. 1 Common resident of 

 the lowland plains. 



Cyanocitta stelleri frontalis : Blue-fronted Jay. Common resident of the 

 mountains. 



Aphelocoma calif ornica : California Jay. Common resident of the foothill 

 regions. 



Corvus corax simuitns : American Raven. -- Frequent but irregular tran- 

 sient visitant to the valley. 



Corvus amt-ricanus hesperis : l California Crow. Common resident of the 

 lowlands. 



Cyanocephalus cyanocephalus : Pinon Jay. Irregular fall visitant to the 

 mesas and mountains. 



Xanthocephalus xanthocephalus: Yellow-headed Blackbird. Rare and 

 irregular winter visitant. 



Agelaius phoeniceus >initr<ilfs: San Diego Redwing. Common resident of 

 the lowlands. 



Stnnicllti tinii/nii m (//I'ctn : Western Meadowlark. -- Common resident of 



the valley. 



Irt<-rus riirii/liittts /K/sotti : Arizona Hooded Oriole. Common summer vis- 

 itant to the mesas and canyons. 



Irii ,-us Inillncki : ISullofk Oriole. Common summer visitant to the valley. 

 Scolecophagus cyanocephalus: Brewer Blackbird. -- Abundant resident of 



the lou lands and cultivated mesas. 

 Coccotkraustes vespertinus ittfi/<n,us : Western Evening Grosbeak. Rare 



aii'l i: i c^-iilai- winter visitant along (he mountains. 

 ( 'nr/ioi/'K -us jiiir/Hin us rmi/iiniicus : California Purple Finch. - Fairly 



coiiiiiion winter \isitant to the valley. 



( 'nr/>tifirii* russini : Cassin I'urjilc Finch.-- Fairly common resident on the 

 higher mountains. 



i/(i'-ns mexicanus frontalis : lI<Mise Finch. --Abundant resident of the 



\alley everywhere. 



1 Not yt acted on by A. 0. I T . committee. (F. M. B.) 



