200 BULLETIN : MUSEUM OF COMPARATIVE ZOOLOGY. 



Mr. Belding considers this species " not rare " in the Cape Region, but Mr. 

 Frazar saw only a single pair during his stay there. They were in the 

 graveyard at La Paz, and when first observed (on March 19) were engaged in 

 building a nest. Tliree days later the male was secured. It does not differ in 

 any way from examples in ray collection from Colorado. 



Mr. Bryant found a few Rock Wrens " on Santa Margarita and Magdalena 

 Islands, and at various localities northward," while Mr. Anthony states that 

 the species is " not uncommon in winter " at San Fernando,i and that at San 

 Pedro Martir he found it nesting, in a single instance, *' at 8500 feet ; more 

 common on the lower slopes." ^ 



It occurs more or less numerously throughout California and northward into 

 British Columbia, and is conmion and very generally distributed in central 

 and western Mexico, where it breeds at every altitude from the crest of the 

 Sierra Madre range to the low country near the Pacific coast. It ranges still 

 further southward, to Guatemala and San Salvador. 



Catherpes mexicanus punctulatus Ridgw. 



Dotted Canon Wren. 



Catherpes mexicanus conspersus (not of Ridgway) Belding, Proc. U. S. Nat. Mus., 

 V. 1883, 635 (Cape Region) ; VI. 1883, 347 (Victoria Mts.). 



Catherpes mexicanus jmndulatus Bryant, Proc. Calif. Acad. Sci., 2d ser., II. 1889, 

 315 (Cape Region). 



"With this Wren, also, Mr. Belding and Mr. Frazar seem to have had some- 

 what diverse experiences. The former notes it as "moderately common 

 throughout all altitudes," whereas the latter found it only on the Sierra de la 

 Laguna. " There were a few here on my arrival (April 26) and their num- 

 bers increased steadily up to the date of my departure (June 9), but even then 

 they had not become really common. I usually found them in canons, but 

 sometimes on hillsides where there were large boulders." There can be little 

 doubt that they breed on this mountain, although Mr. Frazar obtained no 

 definite proof that such is the case. Mr. Bryant secured "a male and four 

 fledged young at San Sebastian," on April 28, 1889, and speaks of hearing old 

 birds "far up the sides of the rocky walls that inclose Comondu." Mr. 

 Anthony reports that the species was " not uncommon in several places on 

 San Pedro" Martir in late April and early May, 1893,^ and that he has also 

 seen it in small numbers near San Fernando.'' Upon comparing Mr. Frazar's 

 specimens with the type of C. m. ^nmctulatus, I find that they agree with it in 

 all essential respects. 



The Dotted Canon Wren is rather generally distributed throughout Cali- 

 fornia, but is not known to range further northward. It is also found in 

 Arizona and New Mexico, and southward into Sonora and Chihuahua, Mexico. 



1 Auk, XII. 1895, 143. a Zoe, IV. 1893, 245. 



8 Zoe, IV. 1893, 245. * Auk, XII. 1895, 143. 



