INTRODUCTION lix 



Asio accipitrinus : Short-eared Owl. Rare winter visitant to the low- 

 lands. 



Syrnium occidentals : Spotted Owl. Resident of the mountains ; perhaps 

 fairly common, though not often met with. 



Megascops usio beiudirei : California Screech Owl. Common resident 

 everywhere. 



Bubo virginianus pacijicus : Pacific Horned Owl. Fairly common resident 

 in the oak region. 



Speotyto cuniculariu hypog&a : Burrowing- Owl. Common resident of the 

 mesas and lowlands. 



Glaucidium gnoma : Pygmy Owl. Resident of the mountains; perhaps 

 fairly common, though by nature of its habits not often seen. 



Geococcyx calif ornianus : Road-runner. Fairly common resident of the 

 mesas and foothills ; rapidly becoming- scarce. 



Coccyzus americanus occidentalis : California Cuckoo. Rare summer vis- 

 itant to the willow bottoms. 



Ceryle ulcyon : Belted Kingfisher. Common migrant, appearing at re- 

 servoirs and along- streams. 



Dryobates villosus hyloscopus: Cabanis Woodpecker. Fairly common in 

 the mountains ; resident. 



Dryobates pubescens turati : Willow Woodpecker. 1 Fairly common in the 

 willow regions ; resident. 



Dryobates nuttallii : Nuttall Woodpecker. Common resident in the oak 

 and foothill regions ; visits the willow bottoms in fall and winter. 



Xenopicus albolarvatus : White-headed Woodpecker. Fairly common re- 

 sident in the higher mountains. 



Sphyrapicus varius nuchalis: Red-naped Sapsucker. Rare midwinter vis- 

 itant along the foothills. 



Sphyrapicus varius daygetti : - Sierra Sapsucker. Common winter visitant, 

 often about orchards and on pepper-trees along the city streets. 



Sphyrapicus thyroideus : Williamson Sapsucker. Rare winter visitant on 

 the mountains. 



Melanerpes formicivorus bairdi : California!! Woodpecker. Common resi- 

 dent of the oak regions. 



Melanerpes torquatus : Lewis Woodpecker. Fairly common winter vis- 

 itant to the oak regions. 



Colaptes cafer collar is : Red-shafted Flicker. Common resident of both 

 the mountains and lowlands. 



Phalcenoptilus nuttallii calif or nicus : Dusky Poor-will. Common resident 

 of the foothills. 



Chordeiles acutipennis texensis : Texas Nighthawk. Common summer vis- 

 itant, chiefly on the dry mesas. 



Chcetura vauxii : Vaux Swift. Common migrant along the foothills. 



Aeronautes melanoleucus : White-throated Swift. Fairly common, except 

 in midwinter, along the foothills and in the mountains. 



Trochilus alexandri : Black-chinned Hummingbird. Common summer 

 visitant along the foothills and in the mountain canyons. 



Calypte cosUe : Costa Hummingbird. Common summer visitant to the 

 dry mesas. 



Calypte anna : Anna Humming-bird. Common resident anywhere. 



Selasphorus rttfus : Rufous Hummingbird. Common migrant every- 

 where. 



Selasphorus alleni : Allen Hummingbird. Fairly common spring migrant 

 along the foothills. 



1 Not yet acted on by A. O. U. committee. (F. M. B.) - S. ruber of the Check-List. 



