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. Three days later the male was secured. It does not differ in 
any way from examples in my 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,! 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 common 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 Rivew. 
Dorrep CaXNon WREN. 
Catherpes mexicanus conspersus (not of Riveway) Betpine, Proc. U. S. Nat. Mus., 
V. 1883, 585 (Cape Region); VI. 1888, 347 (Victoria Mts.). 
Catherpes mexicanus punctulatus BRYANT, Proc. Calif. Acad. Sci., 2d ser., II. 1889, 
815 (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 cafions, 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, 1893,8 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. punctulatus, I find that they agree with it in 
all essential respects. 
The Dotted Cafion 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. 2 Zoe, IV. 1893, 245. 
8 Zoe, IV. 1898, 245. 4 Auk, XII. 1895, 143. 
