(508) Behavior to- ward visitors. Dr. Reynolds and Mr. Brock came to see the thrashers this morning. Greenie would not come to me for worms in the glade, keeping near the bushes. Brownie came, but only when I moved away from the others. Both were reluctant to go to the nest in the presence of the visitors, due, I think, primarily to the presence of a rather active small boy. However, Greenie gave a good exhibition of feeding the young when offered worms at the nest. During most of this operation B sat in the glass house a few inches from my ear and ate worms handed him, instead of joining Greenie. I induced Mr. Brock to go up on the platform and give G a worm, which she took. Although she froze immediately afterwards (not a new phenomenon) it is worthy of note in as view of her having only recently been converted, tending to show that the bird does not discriminate as to individuals so much as to their actions. Thus a stranger offering acceptable food, at a suitable time, in a manner that does not arouse apprehension, is presumably as welcome as an old friend. Freezing does not necessarily indicate fear either, as, I think, has been demonstrated scores on the nest of times by these two birds. When a bird takes a worm and freezes I believe that it means simply that it wants no more worms at the moment. B sits in glass house. G takes worm from Mr. Brock Freezing dis- cossed. B dangles centi- pede in hand. November 8th. Adults not seeking food for young? B eats worm himself. At 7:45 A.M. (Temp. 53) neither adult was at the nest and neither came when I went up to it. B was found in the glade and would take worms only for himself. He and his mate were travelling about together, doing nothing as far as I could see. At 8:45 there was an alarm in or near the glade joined in by both thrashers and innumerable other birds. When this subsided I went to the nest where B and I gave the young birds a good feed. I gave one of them soft-food on the spatula, B watching interestedly and picking B and I feed young.