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University of California Publications in Zoology [Vol. 21 



at Sierra City, Sierra County, October 6, 1911. These would indicate 

 a rather late tarrying near the summer habitat. An immature male 

 (no. E. 301, coll. D. R. Dickey) taken at Lawson (= Lassen) Creek, 

 Modoc County, August 23, is so different from midsummer birds of 

 the same age and stage of plumage from the near-by Warner Moun- 

 tains, that, although I include it under the name fulva, I believe that 

 it was a migrant at the point of capture, probably from somewhere 

 in central Oregon. It has the gray coloration and the type of bill 

 seen in birds from that region. 



There is one specimen in the Emerson collection taken in the 

 Volcan Mountains, San Diego County, February 9, 1884. This bird 



is unquestionably fulva. It can 

 be very closely matched by selected 

 specimens from the Warner Moun- 

 tains (allowing for the different 

 degrees of wear on the feathers), 

 and it is absolutely the only speci- 

 men of which this can be said, 

 that has come to light among 

 the hundreds of winter collected 

 southern Californian fox spar- 

 rows examined. There has been 

 very little bird collecting done 

 in the mountains of San Diego 

 County in winter, not over a 

 dozen Passerellas from this whole 

 county having been examined by 

 the present writer, and it may be 



Fig. Y. Bills of two subspecies of 

 fox sparrow, natural size. 



a. Passerella iliaca mariposae, adult 

 female; no. 2.5691, Mus. Vert. Zool. ; 

 Yosemite "Point, Yosemite Park, Cali- 

 fornia; June 4, 1915. 



&. PasscrelJa iliaca, megarhynchus, 

 female; no. 12402, U. S. Nat. Mus., 

 type specimen; Fort Tejon, Kern 

 County, California. 



that future work will disclose the winter home of fulva to lie in this 

 unexplored part of the state. 



There is a skin in the collection of A. B. Howell (no. 6827), taken 

 at Bluff Lake, San Bernardino Mountains, October 11, 1918, and one 

 in the collection of W. L. Dawson, taken in Santa Barbara County, 

 January 11, 1913, that also appear to be fulva, though not so un- 

 equivocally so as the Volcan Mountains specimen. The Bluff Lake 

 specimen has the brown coloration of fulva, but not the attenuated 

 bill characteristic of adults of this subspecies. The relatively stubby 

 bill of this bird may be a result of inmiaturity, or it may, on the 

 other hand, be an indication of intergradation, perhaps towards 

 megarhynchus. Size and shape of bill are about intermediate between 



