He was not heard to sing during the day. The thrasher nest was observed several times during the day, and always had an occupant. Two changes of shift were seen. This means that there is one egg. Whenever Brownie was off duty, the young birds were easily located and he fed them both. When Nova was off they not found at all. April 23rd. Rhody not seen anywhere, including all of the nests, up to the time I left at 9:30 A.M.. I returned at noon and he still had not been seen. At 1:05 I went to the cage. He was inside flirting with the magpies, but when he saw me, he dropped down from the perch at once and trotted out of the cage to me, standing in front of me expect- antly. I went and got him a live mouse, bringing forth the usual display. This time, however, he went part way up to nest 4-36 with it first, but changed his mind and went to the mirror where he bowed low before it as if offering sacrifice before a shrine. He took this mouse to nest 2-36 at 1:15. When he stood in front of me on first coming out of the cage, he inspected the ground at his feet to see if he had missed any worms that I might have tossed without his having seen them. This behavior has been witnessed and recorded in these notes before. The feathers that Rhody has been moulting are mostly frayed at the tips or with tips completely missing. I found today one such larger than he has been casting off recently and as I have had a strong impression recently that Rhody is darker than he used to be, took it to the M.V.Z to compare with road-runner skins to see if there might be anything about the original color of the tip to account for the darkening noted after it was lost. With Dr. Grinnell the feather was first compared with an April skin and proved to be an inner secondary flight feather from the left wing. The corresponding feather of the skin had also lost its tip. Comparison was then made with an October skin. The cor- responding feather had not lost its tip, but the color of the tip was no different than the bronzy green basic color of the main portion of the feather. However, the October bird was much browner and lighter than the April bird, Dr. Grinnell pointing out that this change to a darker shade, from new to old, was normal. Rhody, therefore, is darker than he "used to be". Incidentally this corresponds with the observations recorded herein on Brownie, where it has been shown that he was lighter in color after the moult. On returning at 5:30 Rhody was overtaken on the driveway head- ed for his night roost, but he stopped when I stopped the car and came back. Although he willingly accepted worms, he soon edged past me in order to inspect the car critically. He seemed lost in admiration. A weakness for automobiles on his part has often been mentioned in these notes, but this is the first time he has been known to desert a banquet to indulge his interest in them.