departure. Bb was working by himself at the oval lawn, indifferent to me, probably as a result of B's recent persecution. 9:58. Bb is at the oval lawn. When I went out just now, he was almost so tame and friendly that I decided that he was B, but his ear coverts did not look just right, and he was a little too rough of plumage. However, a beam of sunlight through an opening in the shrubbery, rested momentarily on his head and his eyes --I thought--showed orange brown, that is; Brownie's color. At the moment I am not absolutely certain of this. He ate all my worms, so I could not assure myself definitely of this point. If they are changing, it will be the first time it has been noted. There was another thrasher with him, unidentified, but not especially timid. 10:15 A.M. Brownie still working at the nest, with Nova's moral support, but not in danger from over-exertion. 10:26. I intercepted Bb on his way to the oval lawn, having now plenty of worms with me. He was in full sun. As he gobbled from the worm-box in my hand, I was able to get the exact facts as to the color of his irides. Looked at when the sun's rays strike about normal to bird's the surface and the head is turned to one side so that the eye is looked into directly, the color is the same as Greenie's, that is: brownish olive. But when one looks down upon the bird at less than arm's length and diagonally through the eye--so to speak--there is a decided, bright orange-red, tinge. I have not noted this with other thrashers of his approximate age and it may be an indication that the color is in process of change. 10:55. Brownie still working at the nest. Thus far today, it looks as if his activities had surpassed the total for the preced- ing week. When he condescended to investigate the worm-box it was noted that the defective feather is still there, or else it has a successor which is even worse, as it is now curled up partly and