The Migration of North American Birds 171 



ing or of descent from the mountains into the valleys during the winter season. 

 Six subspecies of this Jay inhabit North America, and two others occur in 

 central and southern Mexico and Central America. The geographic distribu- 

 tion of the North American forms is given below: 



The Stellar' s Jay {Cyanocitta stelleri stelleri) occupies the Pacific Coast dis- 

 trict, north to Cook Inlet, Alaska, south to northwestern Oregon, and east to 

 western British Columbia and western Washington. Its range includes the 

 islands off the coast of southern Alaska and British Columbia, excepting 

 Prince of Wales Island and the Queen Charlotte group. 



The Queen Charlotte Jay {Cyanocitta stelleri carlottcB) is resident in the 

 Queen Charlotte Islands, British Columbia, and Prince of Wales Island, Alaska. 



The Coast Jay {Cyanocitta stelleri carhonacea) is resident in the Pacific 

 Coast district, north to central Oregon, south to Monterey County, California, 

 and east to the California coast ranges and the Siskiyou and Cascade Moun- 

 tains. 



The Blue-fronted Jay {Cyanocitta stelleri frontalis) occupies the mountains 

 of California, north to the northern part of the state; west to the eastern coast 

 ranges as far south as San Luis Obispo County, also west to Ventura County 

 and the southwestern corner of the state; south to northern Lower California; 

 and east to eastern California and west central Nevada. 



The Long-crested Jay {Cyanocitta stelleri diademata) is resident in the 

 Rocky Mountain region of the southwestern United States and in the Sierra 

 Madre of northern Mexico, north to northern Colorado and northeastern Utah; 

 west to southwestern Utah, western Arizona, eastern Sonora, eastern Sinaloa, 

 and Tepic; south to northern Jalisco and Zacatecas; east to Zacatecas, central 

 western Texas, and eastern New Mexico. 



The Black-headed Jay {Cyanocitta stelleri annectens) occupies the moun- 

 tains of southwestern Canada and the Rocky Mountain region of the north- 

 western United States, north to southwestern Alberta and southeastern British 

 Columbia; west to eastern Washington and central Oregon; south to south- 

 eastern Oregon, northern Utah, and southern Wyoming; and east to north- 

 western Nebraska, western South Dakota, and central Montana. 



GREEN JAY 



The gayly colored Green Jay {Xanthoura luxuosa glaucescens) is the only 

 form of its species occurring in the United States, although there are several 

 other races in Mexico and Central America. The geographic distribution of 

 the Green Jay extends from northern Tamaulipas and Nuevo Leon in north- 

 eastern Mexico, north to the valley of the lower Rio Grande in central southern 

 Texas. It is permanently resident in most, if not all, of its United States range. 



