100 Notices of some California Birds. 
wing, less terrestrial, and is larger, paler and slenderer than fee 
dwarf thrush. 
I heard the song of the Big Tree thrush at Crocker’s and in 
Yosemite Valley—suppose they breed at both localities. 
At Crocker’s a pair of Lincoln’s sparrows ( Melospiza lincolnt) 
were probably breeding, as they were often in and about the garden 
during about three consecutive weeks. 
I saw flocks of the evening grosbeak ( Coccothraustes vespertinus 
montanus )at Crane’s Flat, Gentry’s, and in Yosemite Valley. One 
flock at the latter place contained about thirty individuals of both 
sexes as late as June I. 
I found the white-crowned sparrow (Zonotrichia leucophrys ) 
rather common in Yosemite Valley, where it appeared to be a sum- 
mer resident, but it and some other birds I found there may have 
been driven down to the valley by recent snow storms on the sur- 
rounding mountains. I was in the valley but five days. 
I often saw a pair of the pygmy nuthatch (Sita pygmea) at 
Crocker’s, where they were probably breeding in a dead oak limb. 
About June 25 following I saw two more in southern Oregon, 
near Klamath River. Iso seldom see this bird on the west slope 
that I think these worthy of mention, and also the scarcity of the 
sparrow-hawk (Falco sparverius) wherever I have traveled this 
season. I counted but four between Stockton and Knight’s Ferry 
—a distance of nearly forty miles—and about the same number 
between Knight’s Ferry and Yosemite Valley. I have seldom seen 
it anywhere since the beginning of the year, though hitherto I have 
thought ita very common bird. Perhaps it has become rare by 
death from some disease. 
ACOMYCES ON THE ALDER. The Acomyces mentioned on page 
87 of the previous volume as abounding on the buckeye (Zsculus _ 
Californica) has been observed recently in Redwood Cafion, Tam- 
alpais, on the leaves of A/nus Oregana, which was growing in close 
proximity to diseased buckeye. H. W. K. 
