66 Hidgway on Birds of Calaveras County , California. 
Trees, May 10, 1877. Apparently the true solitarius. Of common oc- 
currence, and breeding. 
16. Lanivireo cassini. No. 73,537, ad. No date. 
17. Vireosylvia gilva, /3. swainsoni. No. 73,043. No date. 
18. Collurio borealis. Nos. 73,615 and 73,616, January 2 and 8, 
1877. 
19. Collurio ludovicianus. Nos. 73,617 and 73,618. No date. 
These examples, like most Californian ones, are by no means referable to 
excubitoroides, but are fully as dark as the darkest individuals of true 
ludovicianus from the Southern Atlantic and Gulf States. 
20. Hesperiphona vespertina. No. 73,538, $ ad. No date. 
21. Pinicola enucleator, j3. canadensis. No. 73,539, $ juv. Soda 
Springs, Placer County, September 28, 1877. 
22. Carpodacus cassini. No. 73,048, $ ad. Big Trees, May 20, 
1877. 
23. Chrysomitris tristis. No. 73,630. No date. 
24. Chrysomitris lawrencii. No. 73,629, $ ad., January 9, 1878. 
25. Chrysomitris pinus. No. 73,540. Murphy's. No date. 
26. Chondestes grammaca. No. 73,541. Murphy’s, February, 
1877 (!). 
27. Pooecetes gramineus, /3. confinis. No. 73,542. No date. 
28. Passerculus sandvichensis, y. alaudinus. Nos. 73,071, April, 
1877 ; 73,625-7. No date. (“ Summit of Sierra Nevada, lat. 39°.”) 
29. Zonotrichia leucophrys. No. 73,543. No date. 
30. Spizella socialis, /3. arizonae. Nos. 73,544, Soda Springs, Placer 
County, September, 1877, 73,628, Calaveras County. No date ; also seen 
January 6, 1878. 
31. Melospiza fasciata, /3. guttata. No. 73,050, g ad. Murphy’s, 
March 20, 1879. No. 73,619. No date. 
32. Melospiza fasciata, y. fallax. No. 73,621. No date. 
33. Melospiza fasciata, §. heermanni. No. 73,621, July, 1877. 
Probably the resident form. 
34. Melospiza lincolni. Nos. 73,540, 73,622-4. No dates. 
35. Passerella iliaca, S. megarhyncha. No. 73,049, J ad. Big 
Trees, May, 1877. 
36. Myiarchus cinerascens. No. 73,546. Murphy’s, April 17, 1877. 
37. Sayornis nigricans. A very curious albinescent example of this 
species (No. 73,611) is colored as follows : Prevailing color very pale pearl- 
gray, fading to white on the abdomen and lining of the wing. Wing- 
coverts tipped with creamy buff, forming two distinct narrow bands. The 
specimen is a full-grown young one, as shown by the buff wing-bands and 
the texture of the feathers. Slight indications of the normal plumage are 
seen in a small black spot just above the posterior angle of the right eye, 
and several black feathers among the lesser wing-coverts, while, according 
to the collector, there was a spot of the same color on the breast, but this 
