1427 and that is exactly what happened; though it does not necessarily follow that the motives which actuated him were those upon which my expectations were established. This incident, nevertheless, followed a course closely parallel- ing human behavior under comparable conditions. (11:15. He is on the observatory roof with the lizard). There are many interesting happenings of similar nature in these notes. Just now I started to look over some of the past notes cursorily for some of them. Purely by accident, the first page I looked at was 1147, April 2, 1936: the first one in book 6. I had entirely forgotten this one. There R had a small alli- gator lizard and added meat to it, then carried the combination about, as if the lizard alone were not enough. There is another one (I don't know where to look for it) where R, carrying a lizard and believed to be hungry, was offered meat, and he laid the lizard down (not a small one) ate the meat, then resumed his march with the lizard. About 12:15 it was seen that Rhody had moved to the main roof of the house with his mouse, surveying the country from there. His cooling song is, for some unknown reason, now seldom heard: certainly not even once a day on the average. The last time was two days ago. At 3:15 Rhody was seen lying in the "arm-chair" roost in the outer cage against the wire of the magpie cage, where he can surprise those birds when they approach too near, by poking his head out first on one side of the back and then the other. As soon as he spotted me on the driveway near the tool-house, he descended at once and beat me to it. The resulting mouse was first taken to the mirror and then to nest 1-36. I did not look for him again until after 5 P.M. He was then lying comfortably on top of the cage and wanted no food. About 5:30 he began his slow march to the roost tree. At 6:12 I arrived there to find that he had not reached the ladder tree; but he was there a min- ute later, and at 6:20, leaped across the gap to his roost--not to the house. The sky was now heavily clouded, so that it was darker than it usually is when R seeks his roost: his normal practice being to go to roost preferably in full sunlight. The only obvious indication that the gloom influenced his actions, was that he required only about 7 minutes to traverse the ladder tree, which rate has been exceeded only once, according to my recollection--unaided by reference to earlier notes. Brownie continued to make application to me for worms. He was present at the test I made of Rhody in the morning: With R in front, B approached from the rear and I could feel his bill tapping my palm as he took worms from a hand extended out behind me. Now that his family needs more food, he takes bigger loads and he is having the same old trouble when picking up worms after he has prepared them on the ground, of dropping more than he picks up; but he has immense patience and stays with the job until he gets them all in his bill again after dozens of failures. April 5th. and 6th. Rhody and Brownie continued to behave true to form during this period, though Rhody showed a tendency to omit showing his mouse at the mirror. Both continued to "discover" me at times