B anticipates young. Once he carried a meal-worm up to the nest, as if there were young to be fed. Feb. 24th. Bright and sunny after the rain. At 8:30 A.M. I went to the glade. B&G came for worms; B again taking one up to the nest. He brought it back again, took another one, started toward the nest again, hesitated, then ate both. G was within a foot or two of him, but he did not offer them to her. After this he took a few fibres to the nest, and G joined him as I left. At intervals during the rest of the day they were seen to add a fibre or two. Test thrashers with centi- and milli-pedes I tested them on a large centipede and two creatures that looked as if they might be a larval form of the millipede (if there is such a thing). About an inch and a half long, nearly white, flat like a centipede, legs from stem to stern, inclined to curl up into a spiral like a millipede. B teases G with centipede, then gives to her. B took the centipede by one end, hammered it about a bit, then teased G with it, and finally let her have it, and she ate it. B came back, looked at the other things, but would not touch them, although he dug within an inch of one of them that was crawling. G was induced to come and have a look, but she would not touch them either. B rejects millipedes. G ditto. Feb. 25th. At 7:45 A.M. both thrashers appeared promptly for worms, coming from different directions. After this, B took one or two minute fibres to the nest. There is early morning song frequently. At 10:30 one of the birds was sitting quietly in the nest. This may be the beginning of the "thinking" period. Early song frequent. Bird on nest.