itary-roosting birds showed any tendency to occupy the same roost habitually, and was somewhat surprised to have him reply in the negative. This is directly contrary to the observed habits of Brownie and Rhody here. As a rather curious coincidence, on the evening of the 26th. I noticed an Anna Hummingbird alighting on what appeared to be its night roost, just outside the western living room window, about sunset. I turned a flash-light upon it at intervals up to 10 P.M. and found it there each time. I shall watch this bird ( or the place) to determine whether it returns. October 27th. 6 P.M. The humming bird is again on the exact spot occupied last night--a short, bare, fine twig of an oak, not at all concealed from almost any direction. This morning when visiting the road-runner cage, two flight feathers were found on the ground. Then head and body feathers, not there yesterday were found scattered all about in clumps of five or six, adhering by their quills. I looked into Archie's night roost and found feathers scattered all over and droppings smear ed on the "blanket" and the glass. (These birds have always been particularly tidy about their sleeping places). My first thought was that A and T had had a great fight over the eastern end of the shelf (p.1042) which has been a repeated cause of friction. Archie was found to have lost a considerable patch of feathers from his head, but had no cuts. Terry had cut his forehead badly and there was also a small cut on the rear end of one of his eye-patches, but the two birds seemed friendly enough. On second thought I decided that a cat had frightened them in the night since there were other evidencas pointing to the presence of such a marauder. However, at bed-time tonight, I watched the birds. Archie was the first to show signs of wanting to go to bed. He jumped up, took one look into his regular "room" and departed at once, thereafter showing no further interest in it whatever--a most unusual circum- st ance, taking instead the hanging nest--a place which has hitherto found no favor in his eyes. Terry, who, since he was ejected by Archie, has occupied a new place made for his especial benefit nearby, would not go to either end of the shelf, his new place, or any of the other places made especially for roosting places, ex- cept that he wanted the hanging nest too, so, twice he jumped up on top of Archie, each time was ejected after a sharp, noisy scrimmage and sought roosting places outside in Cage C where they have never been permitted to spend the night. Terry tried every location there that looked at all promising and, as it began to get darker, plainly became less accurate in his judgement of distances. I finally rigged up a temporary affair for him in Cage C which he took at once, apparently satisfied for the time being. Archie continued to occupy the hanging nest during all this without leaving it once. (He usually is in and out several times). During the scuf- fles he had spread his tail, and when I left, it was still spread; usually it is compactly folded, about one feather wide. Now I do not know what to think; whether the loss of feathers was due to a dispute over the sleeping place or to panic induced by a cat (or a hawk, or an owl). Why have the accustomed places suddenly become taboo? Why is it that Archie and Terry suddenly want the hanging nest, when neither wanted it before?