306 Vnivi rsity of California Publications in Zoology [Vol. 10 



Catherpes mexicanus punctulatus Ridgway 

 Dotted < lanon Wren 



Although canon wrens were not really abundant anywhere. 

 we found them where suitable ground existed, in all parts of 

 the mountains from the floor of the desert to the summits of 

 some of the highest peaks. A large proportion of the specimens 

 collected, however, were wandering juvenals, and it may very 

 well he that the breeding adults are much more circumscribed in 

 their summer habitat. 



They were most numerous in the rocky canons on the desert 

 side of the range. In Palm Canon they were seen from the 

 desert below up nearly to Vandeventer Flat; about Dos Palmos 

 and in Dee]) ('anon they were encountered in some numbers 

 in dune and August; and occasional birds were noted along the 

 base of the mountains at Cabezon, Snow ('reck, and Banning. 

 In 1 he higher altitudes birds were seen a1 Kenworthy in May. 

 in Tahquitz Valley in duly, and on the summil of Toro Teak, 

 duly 1. 



Though so exclusively rock dwellers that it is generally use- 

 less to search for them amid oilier surroundings, canon wrens 

 were several times seen feeding in unusual places. Near Potrero 

 Spring, in Palm Canon, dune Id. one was observed feeding in 

 the branches of a pinon. At the mouth of Palm Canon they 

 were sometimes noted in the lops of the palm trees, dodging in 

 and out of the downturned masses of dead Leaves. 



A bird heard singing near the head of Palm Canon, dune 12. 

 when followed up and secured, proved to be a male in Juvenal 

 plumage. The song was similar to that of the adult, but softer 

 and more subdued. 



Fourteen specimens were taken, as follows: Snow Creek-, four 

 (nos. 2071. 2136 2138), points in Palm Canon, seven (nos. 3056 

 3062), Toro Peak, one mo. 2465), Hemel Lake, one (no. !}006), 

 Round Valley, one (no. 2231). Only three are adults, the 

 remainder being all in the juvenal plumage. 



