80 CALIFORNIA ACADEMY OF SCIENCES [Proc. 4th Ser. 



The series available contains 10 adults and 13 juvenals. 

 The adults are all spring and summer birds, more or less worn 

 and faded, there being no fresh autumnal specimens in the lot. 

 Fall birds are probably more rufescent. 



Thryomanes bewicki eremophilus Oberholser 



Type locality — Big Hatchet Mountains, Grant County, 

 New Mexico. 



Range in California — ^The part of California known to be 

 occupied by this form during the breeding season is limited to 

 the higher mountains of the desert regions of the eastern part 

 of the state in Inyo and Mono counties, and on the east slope 

 of the Sierra Nevada from Lone Pine Creek an undetermined 

 distance northward. In winter it occurs over the breadth of 

 the Mohave and Colorado deserts, westward to the Piute 

 Mountains and to Palm Springs. 



Specimens examined from the following localities: Cali- 

 fornia. Inyo County: Inyo Mountains, 2; Kearsarge Pass, 

 1 ; Lone Pine Creek, 1 ; Little Cottonwood Creek, 1. Kern 

 County: Piute Mountains, 1. Riverside County: Palm 

 Springs, 1. Colorado River between Needles and Riverside 

 Mountain, 9. Arizona: Fort Mohave, 3; Huachuca Moun- 

 tains, 33; Chiricahua Mountains, 6; Fort Lowell, 13; Santa 

 Cruz River near Tucson, 1. Tgtal, 72. 



Distinguishing characters — Largest of the California forms 

 of Thryomanes (see table). Tail longer than wing. Colora- 

 tion pallid, the palest colored of the California subspecies of 

 the genus. 



Remarks — The series here accumulated from different 

 points in southeastern California presents certain peculiarities 

 of appearance that suggest the possibility of these birds repre- 

 senting a form recognizably distinct from typical eremophilus. 

 In general the California birds appear to be slightly darker 

 dorsally and on the flanks, and slightly smaller, with propor- 

 tionately shorter tail. Also in the California birds the ground 

 color of the black-barred central rectrices is usually brownish, 

 where in specimens from Arizona it is more decidedly gray; 

 in the California birds there is a tendency toward a dusky, un- 



