APPENDIX NX. 
1319 
males abound. Iu the fall of 1875, while in Southern California, we failed to find a 
single adult male in the valleys, although the species was very numerously represented 
by adults of the other sex and by the young. The absence of the males was attributed 
to the fact of their having found their way into the mountains, though this seemed a 
hardly adequate explanation. The experience of the past season was but a repetition 
of that of the previous year, except that our ground of observation was exchanged for 
the mountains. Where females and young were to be seen by scores, a most careful 
search failed to discover a single adult male. 
Mr. Ridgway, we learn, had a similar experience in fall along the eastern slope, and 
was equally at a loss to understand whither the males had betaken themselves. 
ALCEDINIDJE. 
31. Ceryie alcyon (L.).—Belted Kingfisher. 
Present on the shores of Lake Tahoe in small numbers, as on the small streams. 
PICI1LE. 
35. Ficus albolarvatus (Cass).—White-headed Woodpecker. 
Numerous in the pine-woods, to which it strictly confines itself, and where it is 
resident. 
33. Picus villosus (L.), var. harrisii Aud.—Harris’s Woodpecker. 
Perhaps the most numerously represented in the mountains of any of the family 
where resident, but not confining itself so closely to the pineries as the preceding bird. 
34. Ficoides arcticus (Sw.).—Arctic Woodpecker. 
This species appears to be of rather common occurrence about Lake Tahoe, where I 
saw it occasionally in September, October, and November. It, without doubt, breeds 
here. 
35. Sphyrapicus ruber (Gm.).—Red-breasted Woodpecker. 
Apparently not very common. Probably a few breed along the eastern slope. 
3G. Sphyrapicus thyroideus (Cass).—Brown-headed Woodpecker. 
Not at all uncommon in the pine-woods about Lake Tahoe, where it breeds and is a 
constant resident. 
37. Jsyndesmus torquatus (Wils.).—Lewis’s Woodpecker. 
I saw but few of this species. It is probably a summer resident, and does not winter 
in the region. 
38. Colaptes mexicanus (L.). 
Numerous; less so, however, in the mountains thanJn the valleys below. 
STRIGIDiE. 
39. Bubo virginianus (Gm.), var. arcticus (Sw.).—Western Horned Owl. 
Abundant; its hooting heard at every camp. 
40. Otus vulgaris (L.), var . wilsonianus (Less.).—Long-eared Owl. 
Common in the thickets of the meadowy lauds bordering upon Lake Tahoe. 
FALCONIDiE. 
41. Falco communis Gmel., var. anatum Bon.—Duck Hawk. 
Met with frequently in early fall. Probably this species leaves the mountains when • 
severe weather comes on aud winters iu the valleys. At all events it becomes quite 
common in the lower regions in November. 
42. Pandion halicetus L., var. caroiinensis Gmel.—Fish Hawk. 
Rather rare; one or two seen about Lake Tahoe. 
