623 No G. No signs of Greenie all day. (No varied thrushes seen since noon March 28th., then only one). April 1st. No singing or calling all day. B and I both feeding the young thrashers. The latter get up and stretch frequently, walk about on top of each other and around the rim of the nest, peck at things, preen and scratch themselves. They listen to all sounds, watch falling leaves and oak catkins and eye me speculatively, but without fear. What effect tree- The oaks were sprayed with lead arsenate 2 or 3 days ago. For several years I have watched after each spraying to note if it had any bad effect on the birds from eating the dead caterpillars, and have failed to note any consequences. I again watched very closely, especially Brownie, and have seen him picking them up off of the a few times. ground and carrying them to the nest. As a consequence I have fed both him and the young birds more frequently than I would otherwise have done, in order to reduce the amount of contaminated food eaten by them. On one or two occasions when B has come to me with green caterpillars I have , by offering him meal-worms, succeeded in getting him to drop the former and taken them away from him, but he usually is too quick for me. It is possible that he does not pick up those that have been poisoned. Visitors at nest. Late in the afternoon Mr. Cain called with 5 or 6 boys. I stood at the nest and the visitors came up one at a time. B, who was not there at first, soon came and the visitors were able to see the young birds taking food from Brownie and me and B getting his supply from me; all at the close range of about 2 to 3 feet. No Greenie all day. April 2nd. Young expected to be gone. 8:30 A.M. I had rather expected one young bird at least to be missing from the nest, but they were both there, very hungry and lively. B did not come. "Off-nest" call of young heard. At 10:15, while I was watching the magpies, about 100 feet from the thrasher nest, I heard the first unmistakable call that the