very softly, his slumber song. He was in his night roost singing, at times with closed eyes--very sleepy. As there did not appear to be another thrasher anywhere in the vicinity and he was not at all concerned with affairs outside in the world, presumably the song was an expression of his sense of well being. (I suppose a reflex stimulated by that sense). 1:20 P.M. Brownie continued in his quarters in the dorm, singing song slumber song to quarter, until 1:10, when he departed. In '33 and '34 September singing and roosting daytimes at the same point precede (in Sept. or Oct.). ed construction of a nest there eventually^. What will happen this year has not yet been disclosed. Unusual Attitude of Young Road-runners Toward Food. At 9:30 this morning 16 "pellets" of meat, each about the size of the end joint of an average-sized man's middle finger were put in the cage for the young birds. Not one of these was touched until 1:15 P.M., when Terry ate one. There was no other food in the cage during this period, except as shown later. Occasional yellow-jack- sets and blue-bottle flies entered and were killed by A and T, but seen to be eaten only once. About 11 A.M. I placed two live young mice, each about the size of the meat pellets, on the floor of the cage. Both birds repeatedly, although not excited, walked over them, occasionally glancing at- them indifferently. Finally Archie, as if annoyed by stumbling over it killed one instantly by pinching its neck and threw it aside. Neither he nor Terry would eat it. A few minutes later A killed the other one, rejecting it also. Both mice were allowed to lie on the ground until noon, when they were removed. About 1:10 I put them in the cage again. They were ignored. Each of the birds was offered one individually, repeatedly. However, when Terry saw me pushing one of them under a rock in the cage, he immediately got