from his breast were again discarded. A hawk swooped down and passed over his head not more than 10 feet away as he was doing a "spread-eagle sun-fit". He straight end up at once, on guard, but not freezing and, for several min- utes, stared in the direction of the hawk's flight. During this hour he spotted four more hawks high overhead, then entered the cage. Failing to locate his meat (which had been shifted to a less conspicuous place) he came to the wire and cried at me from the inside). I handed him one worm at a time through the mesh. He refused meat. I now went toward the tool-house. He followed. at once. He would not take the mouse he had left there, even when I picked it up and dangled it in front of his nose, but cried almost continuously. I surrendered and gave him a live one, which he took off "on tour" with appropriate ceremony. A spoiled bird. Brownie remained missing during the rest of the day. April 11th. At about 6:50 A.M. a thrasher--not Brownie--sat outside my bedroom window in an oak, making no sound. He dived down into the thicket where the thrasher remains were found yesterday. (If B is gone, how soon will other thrashers claim this territory?) Before 7 A.M. Rhody rattle-boomed from the observatory roof. He remained there an hour and a half longer, occasionally singing his coo-song. At 11 A.M. he must have heard me hammering in the shop, for he came to the door and whined. We went to the tool-house and got him a mouse. I returned to the shop. He now discovered that the shop has a fine row of windows on the north side about five feet from the ground, and a long window ledge just right for road- runners who want to exhibit trophies to the elusive bird always found in such places. The exhibition finished, he went to the roof and I left him to his own devices. At 4:10 P.M. I found him inspecting the magpies calmly after having eaten the meat in the cage. I sat down to watch. For 50 minutes, with only a few short periods of rest, he staged the most elaborate performance yet seen with the magpies as the stim- ulus of his activities. At the present time the magpies are build- ing a nest in their cage and the female is very noisy in her solicitation of the male. There is thus much movement within the cage accompanying the cries. There is a possibility also that Rhody recognizes dimly (or instinctively) the presence of a female in the oestrous cycle. His performance, however, was almost precisely similar to that before the mirror when he first discover- ed, plus additional antics, which looked very much like play. Thus it seemed to be a combination of his earlier mirror-dance with a shifting objective, his "circus" through the bushes with a vertical component now added (climbing up the wire netting) hide-and-seek, peekaboo, tag, puss-in-the-corner and so forth), with boos and rattles apart or combined. He appeared to be hav- ing a glorious time. (I forgot to include feinting at pecks). The magpies showed little interest or concern. The first bout lasted 20 minutes; R then retired to the inner cage for a drink, coming out soon with a rush at some new cry from the magpies, to go over the whole thing again for 20 minutes more. Especially entertaining was his trick of composing himself as if for a long rest in his "arm-chair" roost, where the magpies could see only the tip of his tail, and keep perfectly quiet except for rolling