424 CALIFORNIA ACADEMY OF SCIENCES. 



37. Troglodytes aedon parkmanii. 



Parkman's Wren. — One specimen was taken Januai^y 24th , 

 and another seen on the 28th. 



38. Sitta carolinensis aculeata. 



Slender-billed Nuthatch. — Seen and lieard singing 

 every day. Appeared to be looking for nesting sites March 

 1st. 



39. Parus inornatus. 



Plain Titmouse. — Common. The males were singing the 

 latter part of March. 



40. Parus gambeli. 



Mountain Chickadee. — Common. Noticed them singing 

 March 1st. 



41. Psaltriparus minimus californicus. 



Oalifornian Bush-Tit. — Seen February 24th, during a 

 heavy snow storm, with a flock of the Mountain Chickadee. 



42. Regulus calendula. 



Ruby-crowned Kinglet. — Two birds were seen the last of 

 March. 



43. Myadestes townsendii. 



Townsend's Solitaire. — Only two or three were seen. 



44. Tardus aonalaschkae. 



Dwarf Hermit Thrush. — Rare. None were seen after 

 February 22d. 



45. Merula migratoria propinqua. 



Western Eobin. — Common wherever the ground was bare 

 and soft. 



46. Sialia mexicana. 



Western Bluebird. — Common. Mated by March 1st. 



I left the Volcano Mountains on April 2d, and went into 

 camp the same day at the foot of the mountains, on my re- 

 turn to Powav Valley. About dusk two Russet-backed 



