188 ?H] CONDOR Vol. XXI

ular attention since I noticed in THE CONDOR that a set of their eggs had been taken at Palo Alto. I know of three junco nests being found about Redwood City last summer. These were built about the caves of occupied dwellings and in one case inside the attic and all of them were of Fitosus." Westward, in sequoian environment, Fiosus has been found breeding in the vicinity of King Mountain. The late Chester Barlow, under date of May 16, 1901, wrote me as follows: "I took a set of four eggs of Fiosus near King Fig. 39. THE COLOR DESCRIPTIONS OF THE E0S OF THE SIERRA JUNCO IN THE PRESENT ARTI= CLE ARE BASED UPON THE TEN SETS SHOWN ABOVE. THESE, AS ARRANGED, ARE NUMBERS 15, 48, 12, 74, 56, 33, 38, 53, 42, 30, READXNG r o RIGHT. Mountain last Sunday. I shot the female parent, which does not differ from breeding birds taken farther south in the range". Southward from Stanford in the redwood forests of the Santa Cruz Moun- tains piosus is the only form of the genus recorded by Richard C. McGregor in his "Birds of Santa Cruz County" (p. 14), while eastward from Stanford and Palo Alto a wide sweep of salt marsh runs out to San Francisco Bay, a re- gion wholly unsuitable for birds of this character. a. rancisco, Jult 28, 1919.