1783 Neo showed nesting reflex one day later in 1938. Does feeding act as trigger to nesting reflex? Rhody resumes song and from high place. Thrasher song: Volume as compared with last year. I have just looked over last year's notes for the first 8 days of January. On January 8th (See page 1590) I record Neo's first observed carrying of twigs and placing them. This also as I was giving him worms and in the presence of the newly acquired mate. Notes of that period show him tamer than he is now). It will be observed here that, on both occasions, the reflex was shown as I was feeding him worms. Observations on Brownie and Greenie recorded in these notes show them resuming work on nests on being fed, after they had ceased working for some time. There may be some significance in this. I left at 10:15, returning at 3 P.M. Julio reported Rhody as singing "quite a lot" from the roof of the Scamell house. So, once again, he is seeking the high places with the revival of his reproductive urge. He was given a mouse at noon time and slept in No.1. As I looked over last year's notes of this season, as referred to above, it is strikingly evident that both frequency and volume of song last year far surpassed the first week of this year; but then Neo was actively competing for this territory with a rival (or rivals) and had numerous fights. Further he was acquiring a mate. All of this necessitated song. Now he has a mate--this same one--and seems in undisputed possession of this territory. I have heard nothing of the bird Inver for months. January 8th and 9th. Absent much of the time on these days; however, Rhody continued to sing during the forenoons and slept in No.1 Thrasher song was heard both days shortly after 7A.M. (or about 20 minutes before sunrise). January 10th. (Sunrise 7:26; sunset 5:08). Early song A "chummy" day for Rhody, but songless with fits of exhibitionism. Thrasher song heard at 7:05 A.M. Rhody, at his post on the west lot at 8:30 A.M., paid no attention to my assorted sounds, but shortly after was on his bank by the fig tree--located by the wrentits. An Anna humming bird was also doing its power-dive and whistle over him, doubtless for his benefit, as no female hummer could be located. Rhody stayed home until after 2 P.M. and did not sing at all. This was a "domestic" and chummy day for him, for he was pleased to spend some time with me at the sage patch eating worms from hand. This event attracted the thrashers and the female spotted towhee, so that I had the task of administering to all of their wants at the same time. Neo "nests" again. Again Neo was stimulated to nesting activity in the kangaroo thorn on the bank. Rhody pulled off two of his circuses: one for the quail which involved running through their flock with display and rattle-booes and one for a towhee in an apple tree. These performances do not seem to be taken as serious affairs by the birds thus honored. White-throated Sparrow. This bird, still here, seen by Dr. Grinnell.