1908] Grinnell.—Biota of the San Bernardino Mountains. 119 
In the vicinity of Bluff lake the species was common; also 
around the dam at Bear lake. It was found on the summit of 
Sugarloaf July 11, 1906, and August 19, 1905. At Doble, Gold 
mountain, Cactus Flat, in Holeomb valley and on the desert 
around Cushenbury springs, rock wrens were very common in 
August. By the last of this month birds were in the full winter 
plumage, which is then very abundant, loose and fluffy. Twenty 
specimens of this wren were obtained. 
Catherpes mexicanus punctulatus Ridgway. 
Dotted Canon Wren. 
Dotted canon wrens were noted in fair numbers in the lower 
Santa Ana canon June 11 and 12, 1905, and again in the same 
locality September 4. One was seen in the sandstone quarry 
near the mouth of Mill creek canon, July 23, 1907. A pair were 
seen in Foresee creek canon, on the north side of San Bernardino 
peak, about 7000 feet altitude, July 12. A full grown juvenal 
was taken in a rock-pile near Bluff lake, July 15; and several 
were observed on rocky hillsides and in ravines in the vicinity of 
Cactus Flat, on the desert slope. This species seems to belong 
chiefly to the Upper Sonoran zone, though apparently ranging 
up through Transition on suitable ground, as well. The species 
was not met with frequently enough in the San Bernardino moun- 
tains, however, to warrant any decided conclusions in this regard. 
Thryomanes bewickii charienturus Oberholser. 
San Diego Wren. 
The San Diego wren was common in the serub oak belt on the 
Pacific side of the mountains. Along Mill creek and the lower 
Santa Ana it was numerous; less so at Clarke’s ranch and in the 
brush belt near Seven Oaks. A full-grown juvenal was taken at 
the latter point July 7, 1905. One individual was seen as high 
as 6700 feet altitude, in a tongue of the Upper Sonoran zone on 
the south face of Sugarloaf, July 3, 1905. On the desert slope 
of the mountains at Cactus Flat, 6000 feet, and at Cushenbury 
springs, 4000 feet, several San Diego wrens were seen in August. 
Six specimens in all were taken. 
