complex a situation for him to unravel on the spur of the moment and I imagine that he acted automatically in response to the reflex which was most powerfully stimulated at that moment by the group of associations with which he was confronted, viz: an old friend bearing food, at a time when feeding of nestlings with that food, but for an accident, was in order; a nest of his own nearby with which he was preoccupied. Thus: A friend bringing food, nestlings to be fed in a nest; here's the nest. When he went off from the nest, I suppose he remembered his new wife (who was not there) and intended to take the worms to her, which would not be out of line with past observations. During the rest of the day little work was done on the nest. All of it so far has been done by B. This is also a period of courting with snatches of full song heard from various directions, and occasional song of fairly long duration near at hand. Nova is seldom seen and B seems to have some difficulty in keeping track of her. He is also beginning to talk a little again when he comes to me. May 12th. Much wandering full song during the morning, early, and throughout the forenoon, occasionally becoming stationary at favored places, like the vicinities of the new nest, the old oak, and the oval lawn. About 8 A.M. Brownie was carrying twigs up to the new nest, which in this case, is following standard practice by beginning with a foundation of sturdy twigs, mostly oak and Baccharis. 3 P.M. B is visiting the nest at infrequent intervals and placing twigs, also calling from there at times. Earlier in the afternoon he favored me with a beautiful three-quarter song, rendered in the open, facing me about 25 feet away, lasting--including pauses--about 10 minutes. He then went off to round up his mate. Just now he came to me in the glade with new talk, plaintive and