Vol. XXII 

 1905 



Grinnell, Summer Birds of Mount Pinos, Cal. 39 1 



64. Certhia americana zelotes (Osgood). Sierra Creeper. — Creepers 

 were in evidence in moderate numbers among the pines and firs from 

 7000 feet to the summit. The specimens obtained show the Mount Pinos 

 bird to be unquestionably referable to the Sierran form, zelotes, and not 

 to the race, occidentalism which occurs near the coast of southern Mon- 

 terey County, 175 miles to the northwestward. 



65. Sitta carolinensis aculeata (Cassin). Slender-billed Nuthatch. 



— Above the 6000 foot contour level this nuthatch was locally numerous. 

 In the golden oaks of Seymour Canon it was about the commonest bird. 

 But elsewhere it was found notably numerous only in a small part of the 

 fir woods on the north slope near the summit. 



66. Sitta pygmaea pygmaea ( Vigors). Pygmy .Nuthatch. — Very 

 common in the Jeffrey pine belt, and apparently exclusively confined to 

 it. From 6000 feet to the summit on the south exposure, Pygmy Nut- 

 hatches were to be heard or seen almost constantly. Young were plenti- 

 ful from the date of our arrival. 



67. Basolophus inornatus inornatus (Gambel). Plain Titmouse. — 

 Titmouses were occasionally observed in the brush and golden oaks 

 below 6500 feet. 



68. Parus gambeli Ridgway. Mountain Chickadee. — Very com- 

 mon all over the mountain above 6000 feet. Most numerous in the 

 Jeffrey pine belt. 



69. Chamaea fasciata fasciata (Gambel). Southern Wren-tit. — A 

 pair were seen in a manzanita thicket in Seymour Canon at 6500 feet, but 

 none higher. In the brush belt at 5500 feet and lower, the species was 

 sparingly represented. The two adults secured belong to the same race 

 as specimens from the vicinity of Los Angeles. 



70. Psaltriparus minimus minimus (Townsend). — California Bush- 

 tit. — -Flocks of bush-tits were frequent in the golden oaks and brush 

 below 6500 feet. 



71. Polioptila caerulea obscura Ridgway. Western Gnatcatcher. 



— A very few were noted in company with bush-tits at 5500 feet below 

 Seymour Creek Meadow. 



72. Merula migratoria propinqua (Ridgway). Western Robin. — 

 Robins were present in relatively small numbers only, and were confined 

 to the upper parts of the mountain, above 8000 feet. Perhaps 20 individ- 

 uals were seen altogether, some feeding on the ground about moist 

 cienegas, others singing from lofty perches at the tips of pines. No 

 nests or young were discovered; but the robins were surely breeding, for 

 the ovary of a female secured contained a fully formed yolk. 



73. Sialia mexicana occidentalis (Townsend). Western Bluebird. — 

 Bluebirds were abundant all over Mount Pinos, even down into the 

 piiion belt. In favorable spots, such as damp meadows, young and 

 adults were congregated into companies, quiet, but effective in putting 

 great numbers of larval grasshoppers out of sight. 



