the night about 6. Before this, however, I had again given worms to the occupant of the nest, which I could not identify, as I had always not kept track of them during their frequent changes. (Tenp.74 ) Pecking believed It should be recorded that when the birds peck me in this way, to show merely mild dis- pleasure. they make no vocal sound and do not ruffle up their feathers, spread their wings or tails. They either resent this interference more than formerly, or else are now freer in their expression of it. October 17th. Morning calls. Miscellaneous early morning calls were heard and short songs, but no sustained efforts. Calling for change of shift. New habit. A shift was made at 7:45 in response to a loud series of musical phrases uttered by Brownie on the nest. It is to be noted that calls from the nest are now no longer a rarity, whereas in previous instances, the bird off duty almost invariably gave the signal for the change. Again, the "blue-bird" approach call of the bird approaching the nest is now seldom heard. There is very little of the stereo- typed behavior in these birds. 12:30. I have had little opportunity to watch the thrashers this morning. However, about noon, I went to the glade where Brownie was given worms, after which he indulged in a perfect riot of song ranging from quarter to three quarter, with imitations of the thrush, hen, quail, flicker, bell and xylophone . A Green-backed Goldfinch sat about the same distance behind me (about 10 feet) and snag for several minutes almost continuously and simultaneously. B's mimicry. Comparison with Gold- finch song. B listens to G's call but ignores. B's quarter song is not so loud as the song of this particular finch. B came out for a sun-bath and G called loudly from the nest. B hesitated in the middle of his "fit" and listened, then went on the same as before, going to the nest only when he felt like it, but coming to me first. G came directly to the glade when finally relieved.