I held up, at arms length, a worm as an offering he came down still further, very careful about his footing, though he slipped once or twice, and took it eagerly. After he had had several, further supply was withheld and he climbed up higher, making a frantic show of nest-building activity at such a rate, that, if continued, a completed nest should have resulted in a few minutes. However, as I have seen this sort of thing before, I left knowing that the impulse would fade out shortly, in all probability. Nevertheless, his behavior parallels former activities that have resulted in a batch without result of youngsters. He may keep this sort of thing up for months, or me may build a nest anytime now. 2 P.M. I heard a fine, continuous undersong coming from the terrace by the dining room window, while I was sitting by the oval lawn and suspected it to be Nb, as the others were reasonably well accounted for. So as not to disturb him I went up through the basement to reach a window giving upon the terrace and at about the same level. It was Nb. He saw me, or as much as was visible to him when I showed but one eye. His reaction was of mingled timidity and curiosity. He moved about to get beeps from different directions at this strange phenomenon emerging from the depths, but did not run away, so I left him to resume his song. His song is as good as any adult 1/2 song, except that it has fewer imitations of other birds, or, rather none at all. Nb's moult. At close range he is easily distinguishable from Bb. Unlike the latter, his tail is moulting, the back of his neck is rough (It has been for some time) and he appears a little larger and more mature A seed-eater. Like Pat, he is a great eater of seeds and chicken feed. Sept. 7th. 1:55 P.M. Up to about noon there was frequent full song by Brownie. He was definitely placed as the singer about 8 A.M., although the song began much earlier. At that time he had a congregation of thrashers, unidentified, in the sparrow-hawk pine. From