Ridgway on Birds of Calaveras County, California. 67 
was carried away by the shot. The specimen was obtained at Stocton, 
July, 1877. 
38. Contopus richardsoni. No. 73,547. No date. 
39. Empidonax pusillus. No. 73,044. Stocton, July, 1877. 
40. Empidonax obscurus. No. 73,047. Murphy’s, April 28, 1878. 
41. Empidonax hammondi. Nos. 73,045-6. Murphy’s, April 28, 
1878. 
42. Pious nuttalli. No. 73,033. Murphy’s, Calaveras County (alt. 
2,000 feet), April, 1877. 
43. Pious pubescens. An adult male (No. 73,606), collected Decem- 
ber 27, 1877, is absolutely typical P. pubescens. There is a large cluster 
of white spots covering the lesser wing-covert region, while the greater 
coverts have a row of white spots at the base, more or less concealed by 
the middle coverts ; the secondaries and tertials are likewise completely 
crossed by bands of white spots. I have seen very many Western exam- 
ples of this bird approaching the true pubescens, to a greater or less 
degree, but this is the first I have seen having the row of spots at the base 
of the greater coverts, and the conspicuous cluster of white spots, forming 
an irregular broken patch on the middle coverts, — the essential charac- 
ters of pubescens , as restricted. 
44. Ficus pubescens, 0. gairdneri. No. 73,607, $ ad. December, 
27, 1878. 
45. Sphyrapicus thyroideus. Nos. 73,548, $ ad. and 73,559, 9 ad. 
No dates. 
46. Colaptes auratus, 0. mexicanus. Nos. 73,603, and 73,605. 
December, 1877. 
47. Colaptes auratus, y. hybridus. Nos. 73,602-4, December, 1877. 
This series is one of great interest. One specimen corresponds very nearly 
to G. u ayresii ” of Audubon, having red “ mustaches,” gray throat, and 
yellow shafts ; the latter, however, have a decided orange cast, while there 
is merely a trace of the scarlet occipital crescent. The most interesting 
specimen of all, however, is No. — , of which, unfortunately, the tail 
only was sent. In this the rectrices are deep red, as in true mexicanus, 
with the exception of the middle pair, which are pure gamboge-yellow, 
without a trace of orange ; the contrast being thus very striking. An- 
other specimen, of which the tail only was sent, is similar except that the 
middle tail-feathers are pale-pinkish instead of yellow. 
Records of the occurrence on the Pacific Slope of species formerly con- 
sidered exclusively Eastern, have now become so numerous as to render 
it extremely probable that, as the various districts of our Western domain 
are more fully explored, the number of species common to both sides of 
the continent will be considerably increased and the list of those peculiar 
to the Eastern Province correspondingly diminished. The transfer from 
the latter category to the former may be considered as established with 
regard to several of the species enumerated above, as Dendrceca coronata, 
