64 THE CONDOR Vol. XXII 
Passerculus were seen by our party and five captured. These appear to be in- 
separable from Passerculus sandwichensis bryanti, 
No further investigations were made by us until May 12, 1919, when a spe- 
cial trip was made to the same ridge, where many of these Sparrows again were 
noted. Sixteen specimens were taken, all of them being identified as bryanti. 
Among these, three females proved to be either laying or about to lay, while 
one young male was scarcely more than a fledgling. Although no actual nests 
Fig. 12. BLack’s MOUNTAIN, MARIN CouUNTY, CALIFORNIA, ON WHICH 
THE NEST WAS TAKEN BY C, A. ALLEN, AND ON TOP OF WHICH 
LITTLE TOOK A BRYANT MARSH SPARROW ON AuGusT 9, 1919. 
were discovered, such evidences of breeding in that locality seem practically 
beyond dispute. 
On August 23, 1919, we again visited the ridge and many Passerculus were 
noted, the twenty-four specimens taken, including six juveniles, being identi- 
fied as bryanti, as in the former cases. , 
This ridge runs parallel to, and the entire length of, Tomales Bay, from. 
the shores of which it rather abruptly rises, in places to an elevation of 500 or 
