1908] Grinnell —Biota of the San Bernardino Mountains. 97 
Amphispiza bilineata deserticola Ridgway. Desert Sparrow. 
The desert black-throated sparrow was the most abundant 
bird on the desert around Cushenbury springs, 4000 feet altitude, 
August 10 to 14, 1905. Full-grown juveniles, young and adults 
in many stages of moult, were secured. At Cactus Flat, 6000 feet, 
the species was also common, and on August 16 a family of 
young seareely able to fly was met with among the tree yuccas. 
A single full-grown juvenal was taken at Doble, 7000 feet alti- 
tude, August 8. Twenty-two specimens in all were taken. 
Amphispiza belli (Cassin). Bell Sparrow. 
This sparrow appeared to be breeding commonly in the grease- 
wood brush in the vicinity of Clarke’s ranch, 4000 to 5000 feet 
altitude. Full-grown young were taken there June 12, 1905. 
Young were also found in the brush belt near Seven Oaks on 
July 10. They were again seen on September 4, 1905, a little 
below Clarke’s ranch. 
The species was also noted in full sone at the mouths of Mill 
ereek and the Santa Ana. Full-grown young were seen at the 
latter place, June 11. The Bell sparrow seems to be strictly con- 
fined to the Sonoran zone on the Pacific side of the mountains. 
Its range does not overlap that of the allied form canescens. 
Nine skins were secured. 
Amphispiza nevadensis canescens (Grinnell). 
California Sage Sparrow. 
This species was met with sparingly on the Artemisia flats 
north of Baldwin lake and near Doble, 6700 to 7000 feet altitude. 
Full-grown young were taken there August 7 to 9, 1905. Several 
were seen at Cactus Flat, 6000 feet, and two taken August 15; 
and another was secured at Cushenbury springs, August 12. 
The latter three had completed the fall moult and were in full 
winter plumage. 
The five specimens secured agree exactly in size and color 
with the race canescens described by me from Mount Pinos, Ven- 
tura county, California. And they here occupy the same sort of 
grounds faunally—the belt of Artemisia tridentata and pinon. 
