1524 Chiisai now began to explore the surrounding trees, in- cluding the glass house in the dormitory tree and I concentrated on him. I wanted to introduce the thrashers to the garden on the south side of the house, where they would find ideal conditions from the thrasher view-point, so took advantage of their tendency- developed in the cage--to come to me sooner or later, even when not directly seeking food from me. In other words while they have not been accustomed to follow me about as a chick does a parent, xxx they have, nevertheless, shown a marked tendency to keep in touch with me, even if only to dig under my feet. I now began to "drift" toward the south and west, Chiisai following (whenever it pleased him) mostly through the branches of the trees. In this way I led him to the shop-yard. From there to the upper garden (patio) he quite definitely followed me, and promptly. The new world he entered fitted all his requirements and he is still (11:55 A.M.) there digging and exploring the trees shrubbery and pools, bathing, coming to me for worms and (although I did not see it myself, being engaged with Okii elsewhere at the time) he entered the house either through this room or the front door, and was found by Julio upstairs in my bed-room. He could not have entered through a bedroom window directly from the trees as such windows as were open were screened. (12:03. I hear him sing- ing digging song somewhere nearby now).(Went out; he yipped and "tsee-pooed"; came out from bushes; jumped to hand). Okii did not follow as did Chiisai and I found him in the cage at 10:15: in the upper annex hopping restlessly back and forth, forth and back, endlessly. He would not come out or down. Fully three quarters of an hour he kept this up. Something missing from his accustomed environment (Chiisai?). Finally he came down to me for worms. Then followed a long digging song, merging into quarter song, at my feet, and reaching up into half and even three quarter at times when he was not digging. The song contained veritable jay and robin mimicry and is the best I have heard from him. Finally a rootlet caught his eye and he took it up to the nest with voluble "talking". I joined him and furnished addition- al material--all thankfully received and placed with much talk. This "talk" I am much inclined to regard as real song, perhaps "nest-building" song. In a few minutes the impulse ceased. It was the first exhibitin of it by Okii for some days. He now went back (roughly 11:50) to the upper annex to resume "pacing the floor". While I was having luncheon in the cloister Chiisai continued to sing nearby. If I approached him he changed to his baby vip and was eager for worms. At about 12:50 I found Okii still in the cage "pacing". In about 10 minutes he joined me in the outer cage and was given worms. Some of them he would carry about for a few seconds "talking",a recrudescence of the feeding instinct (brought out by Chiisai's absence?). For about 30 minutes he sang, mostly at my feet, beautifully: digging, quarter-and half-song. I wonder if his in- disposition to leave the cage is a result of his having found that food is not so easy to get outside. At 11:30 I returned to Chiisai's present domain, Okii ceasing to sing as I left. (I hid behind the trees to listen). I could not find Chiisai until he revealed himself (by begin- ing to utter his baby call) in a rhododendron. He was hungry. Perhaps he too is finding poor pickings in the outer world in spit of his diligence. At 1:50 I returned to Okii. He was still in the upper part of the cage, silent. I sat in the outer cage. In a few minutes he