with his offspring in hot pursuit. Everything then calmed down. This is running true to form. Nb and Nova were at the oval lawn, the latter out of sight as usual. Bb recording. Later full quarter song of long duration was heard from the glade. As it was audible about 30 feet, I took B to be the author, but he suddenly appeared behind me, coming from the orchard, and investigation revealed Bb to be the singer. Song-sparrow subsinging? It is to be noted that song sparrows are now either recording or singing sub-song, according to whether they are immatures or adults-- I do not know which. Moult of March born thrasher. Pat (Little Brownie) at Dr. Reynolds's, now 4 months and 5 days old has been moulting for more than a week. He is getting new wing coverts and losing breast feathers. Pat's friend joins him. His friend walked into the open part of the aviary some days ago, and since the door was closed on him, has been there ever since, apparently contented. There is no evident sign of moult in his case. July 23rd. B feeds Bb less. Very little seen of Nova and Nb. B is feeding Bb less. He entertained for about a half hour by singing quarter song while lying on the ground about 10 feet from me. It seems. The two youngsters July 24th. B prevents my feeding Bb, Brownie seems determined that I shall give worms to no other bird. About 11:30 A.M., in the glade, Nb was behind me in a tree, Bb 10 feet and towee. diagonally to my left, a spotted towhee in a similar position to the B pushes Bb right waiting for worms for his new brood. Brownie would chase Bb away each time he tried to approach me, jumping in his face and pushing him over on his back with his feet. B did not want worms particularly for himself, but managed to get all of them tossed to the other birds, Nb not participating--merely watching. Finally B drove him out of the tree. I was unable to feed any other bird while he was present. At last he got tired of the game and left. July 25th.