L'fii* University of California Publications in Zoology [Vol. 10 



tints beneath, and tinge of blue on lower tail coverts. In not 

 one of these respects do we find the least apparent difference. 

 always taking perfectly comparabh specimens into consideration, 

 as regards agt and stagt of plumagt wear. We cannot help but 

 believe that misinterpretation has resulted from inadequate 

 material: for there is a very great modification of colors through 

 the year accompanying abrasion and fading of the plumage. 

 Furthermore, comparison with birds from the Sierra Nevada 

 area is not pertinent in this connection. Since the name cali- 

 fornicus was applied to the coast form (Monterey, in the Santa 

 Cruz district!, and since, as we are thoroughly convinced our- 

 selves, birds from the San Diegan district and the Santa Cruz 

 district are identical, there is no justification for using the name 

 obscura for the southern California Aphelocoma. 



If distinction is to be made anywhere among these jays in 

 California, separate designation should more properly be given 



to birds of the Sierra Nevada area, which are so what paler 



and larger than the coasl form. 



Corvus corax sinuatus Wagler 

 Western Raven 



No1 common. Seen in small numbers, single birds or two 

 together, at various times and places, none at a higher elevation 

 than Kenworthy. 4500 feet. At Deep Canon, .lime pi. two sud- 

 denly appeared, circling overhead while we were working over 

 the can-ass of a mountain sheep, though none had been noted 

 during the days previously spent at this point. 



Single birds were seen as follows: near Hemet, .May L9, at 

 Whitewater, .May 1 and June 3, and Cabezon, .May 8. One was 

 noted at Kenworthy. June -K and several, feeding on the carcass 

 of a calf. Augusl !>. Several at Dos Palmos, Augusl 23 to 27. 



Nucifraga columbiana (Wilson 



( 'larke Nutcracker 



Met with in but very small numbers and at few points. I hiring 



July a few were seen daily in Round Valley and in Tahquitz 



Valley; one on July 7 at the summit of San Jacinto Peak. In 



