the dormitory tree. It was so small that I wondered if he would waste energy by taking it up to the nest instead of a larger one that would be worth his effort, and, as a matter of fact, he did exchange it for a big one, which he placed carefully, worked for 3 minutes and came out to rest 15 on the screen. There was now another person with me. R came down, picked up another twig, ran past us, took it to the mirror, then over the fence to nest 2-36. (He is playing no favorites). At 11 I went over and invited him to return, as I wanted to bring him and R5 together. He started back, but when I went to get a mouse, I lost track of him, and did not find him until 11:15, when he was back at his post on the west lot (150 yards away from 2-36) singing and preening alternately. He showed no interest in my invitation. While in the vicinity of the cage, the two birds showed little interest in each other. R5 would not come down, but when Rhody went over the fence to 2-36, R5 rattle-boed sonorously, causing R to hesitate for a moment. (1.e., R5) R5 (Pepper) takes 11:55. Pepper appears to have the same conception as to the proper size of mice as Rhody. A large white mouse has been in his can all morning. Twice I saw him go to the can and look at the mouse; once going down into it. The last time he did this I got him a smaller one of the same color and showed it to him from outside the cage. He came at once and took it from my fingers with no more hesitation than Rhody, and gave it no chance to escape as he did the lizard. Chalk up another "first" for Pepper. I imagine that, like Rhody, he is more confident when I am on the other side of the wire, showing recognition of the wire as a barrier of some sort. At 12:25 I was having luncheon in the cloister, the floor of which is level with the garden. Rhody suddenly appeared from nowhere and began crying as he ran toward me. I had not invited him and did not know he was around. He stood a few feet away and cried and cried. (This time I could see down his throat far enough to observe that he is not all "black" inside his mouth). Of course he wanted a mouse, so Julio went and got one, Rhody coming to the table for it. This is the first time that Rhody has come there and begged me for food--for that is just what he did. I had not fed him during the morning, so supposed that hunger was his ruling motive; but he took the mouse with ritual and trotted off. I went to the cage and found him displaying with it at the mirror, then returned to finish lunch. His action in coming was so direct and purposeful that he probably knew where to find me; perhaps having been watching me without my knowledge. At 12:50 he was sitting quietly by the wire of the cage holding the mouse. R5 was in the outer cage 9 feet away, also quiet. I do not know what happened in the interval. About 15 minutes more of inaction and R moved toward the point where he usually goes over the fence to the north, so I went and stood there, causing him to change his mind. In a few minutes he ate the mouse, I moved away; he then carried out his original intention of going over to nest 2-36, to which he carried a twig. In ten minutes he was home again and took a twig to 4-36. A visitor now came and sat with me near the cage. Rhody alternately worked in 4-36 and wandered about. For a time he sat on the cage roof and tried to free himself of a pellet, but without success. At 2:45 I left him carrying nesting material to 4:36.