nest location doing nothing. She came down shortly and went into the thicket of baccharis, mimulus and sage in the glade, from which soon sounded protests from quail followed by a loud rustling, whereupon out came a pair of quail followed by one of the thrashers apparently chasing them. If so, this is a new proceeding. I left the thrashers digging in the glade when the excitement had subsided. 4:00 The "nest" begins to look like a serious effort after all. Although Brown-eyes, when not otherwise occupied, spends a good deal of her time sitting there doing nothing, it is now possible to see the "beginnings" of the nest if one knows where to look. It is about ten feet above the ground in a small oak which forms part of the eastern boundary of the glade and about 20 feet from the first nest and 30? feet from the second. The jays, hawks and owls which make the old oak an observation point will, I am afraid, have no difficulty in finding it, as they will be able to look right down into it. In this connection I am reminded of Mrs Wheelock's observation in her "Birds of California"; "My observations go to prove that the destruction from various causes outside of human agency is greater among Thrashers than among almost any other wild birds." This book gives the incubation period of the California Thrasher as 14 days. April 27 At 5:50 A.M. I went directly to the new nest site expecting Brown-eyes to be on the job and she was placing twigs in the nest. I talked to her and from about four feet over my head she burst out into full song. When she would stop I would talk to her again and she would repeat the per- formance. As Julio says: "A very fine bird." Owing to absence, no observations were made until 5:15 P.M. At that time it was seen that considerable progress had been