Sept., 1921 163 
FROM FIELD AND STUDY 
A Yellow Phase of the Cassin Purple Finch.—Although Linnets (Carpodacus 
mexicanus) are well known to show variable amounts of yellow, this color has not been 
detected, so far as I am aware, in other members of the genus. An aduit male Cassin 
Finch (Carpodacus cassini) taken by the writer near Sierra City, Sierra County, Cali- 
fornia, July 17, 1916, has the normally red areas entirely replaced by lemon yellow. It 
is now in the collection of Mr. A. B. Howell.—A. J. vAN RosseM, Los Angeles, California, 
March 25, 1921. 
Black-and-White Warbler Again in Southern Californiaw—On April 20, 1921, I ob- 
served a male Black-and-White Warbler (Mniotilta varia) in full song in a plane tree 
in a stream bed in Carpinteria, Santa Barbara County. This is, I believe, the sixth 
known occurrence of the species in California (see Pac. Coast Avifauna, no. 11, p. 144, 
and Condor, xxlI, p. 76). The bird noted above was within a mile of the spot where 
Dr. Henderson saw the bird noted by him (loc. cit.) —RALPH HOFFMANN, Carpinteria, 
California, April 28, 1921. 
Notes on Some Birds of the Berkeley Campus.—From 1883 to 1889 I was actively 
engaged in collecting birds at Berkeley, California, and for several years made regular 
notes on bird migration. Some of these notes appeared in Belding’s “Land Birds of the 
Pacific District’, issued by the California Academy of Sciences in 1890, but many of 
them have never been published. Those on early arrivals or late departures are still 
interesting in comparison with subsequent observations or in averaging dates of arrival 
of certain species during a term of years. 
Examination of the records in Grinnell’s ‘Second List of the Birds of the Berke- 
ley Campus” (Condor, xvi, 1914, pp. 28-40), indicates that several entries among my 
notes may be of interest. While my earliest or latest dates have probably now been 
superseded they may still be worth recording as they refer to years for which there 
are comparatively few published notes. 
Larus philadelphia. Bonaparte Gull. A male bird of this species was “found 
nearly dead” on the University grounds April 21, 1888, and was presented to me by Mr. 
J. J. Rivers, then curator of the University Museum. The specimen was duly made up 
and was preserved in my collection in the California Academy of Sciences which was 
destroyed in the San Francisco fire of 1906. 
Stellula calliope. Calliope Hummingbird. The statement in Belding’s ‘“‘Land 
Birds”, p. 89, that the Calliope Hummingbird is a “rare accidental visitant” at Berkeley 
was based on a single specimen collected on the hill, just east of the grove where the 
Greek Theater now stands, in the early fall of 1884 or 1885. Frank H. Holmes, Hubert 
F. Burgess and I were collecting together at the time, and the bird was shot by Holmes 
or Burgess. So far as I am aware it was the only specimen obtained in Berkeley during 
the years that I collected there. 
Passerina amoena. Lazuli Bunting. The earliest date of arrival according to my 
notes is April 18, 1888, which is six days earlier than that mentioned in Grinnell’s “‘List’’. 
Dendroica auduboni. Audubon Warbler. My earliest dates of arrival in the 
autumn seem to be October 8, 1887, and October 2, 1888, and the latest date on which 
the bird was observed in spring April 15, 1887—all of which have now been superseded. 
Anthus rubescens. Pipit. The earliest date of arrival that I have for the Pipit in 
autumn is September 28, 1887, which is several days earlier than the dates given by 
Grinnell. 
Salpincies obsoletus obsoletus. Rock Wren. Not included in Grinnell’s list. Al- 
though I can not now give any specific dates, I frequently found the Rock Wren, espe- 
cially in autumn and winter, on the hills east of the Greek Theatre and on the north 
side of Strawberry Canyon. 
Sitta canadensis. Red-breasted Nuthatch. My latest spring record is March 27, 
1888, while the latest mentioned by Grinnell is March 24, 1913. 
Hylocichla guttata nanus. Dwarf Hermit Thrush. Early fall records include 
