of mice than formerly and larger of meat. This was not originally a move initiated by themselves. T still eats the larger proportion of meat. They are now 94 days old, plus or minus a maximum of 2 days. Sept.3.rd. The thrasher conventions have not been seen or heard for several days; presumably they are over. Brownie is now quite sleek and tidy. As yet I have not been able to detect the defect in his left wing flight feathers which had passed through the 2(?) preceding moults without being corrected. He is not at present singing much undersong and his full song is heard most in the mornings and then invariably. Archie has reestablished his dominance over Terry, but it partakes more of a givingway by T than of aggressiveness by A. They do not come to blows and either bird is apt to retreat when approached too rapidly by the other, and A occasionally chases T for a few seconds, but does not press the matter. The chasing seems to be in play. Sept.4th. In going to bed in their sleeping quarters this evening A wanted whatever location on the shelf that T occupied. He would dispossess T by rising from his own couch at the other end, advancing upon T, whereupon T would drop down to the ground. A would then occupy T's place for a few moments, and then apparently satisfied by his victory, join T on the ground in peace. This happened several times. What happened next seemed to depend upon which bird went up to the shelf first. Preference of both birds seemed to be for the eastern end. (See sketch p.1042). If A went there first he would stand up on seeing T approaching and threaten him, no matter which end T sought. T would then retreat and stay away for an indefinite period. If T went up while A was down, A would dispossess him whichever place he took and sometimes stand guard at the edge of the shelf to dis-