their quarry, necessitating my coming to the rescue. October 21st. B quiet. The quiet period among the thrashers continues; occasionally a little sub-song by Brownie, but is quiet for the most part, loafing in the shade, with no apparent interest in nesting. Rhody Rhody on the job as usual, still voiceless while inspecting the youngsters, the latter doing the talking. T loses wing feather Terry moulted a secondary flight feather; the first definitely traced to its source and the third one found. All of these may have been shed as a result of accident and not necessarily by normal moult. (Probably accidental - Oct 23) A and T have no conception of number. Here is a typical performance of either Archie or Terry that seems to indicate that they have no conception of number whatever. For example a mouse runs under a stone and one or both try to get it out. To simplify the illustration, let's say Archie alone is after it. He either gets it himself or I get it for him. He may turn it loose or eat it or merely glance at it, but in any case, he usually, immediately after, begins to look under the rock again, even though the mouse may be in plain sight outside and notwithstanding that he had had no interest whatever in the rock before he saw the mouse go under it. October 22nd. A and T and wind. Like the thrashers, Archie and Terry are afraid of the wind even when they are not exposed to it and listen acutely to all of the mysterious sounds due to it, becoming very restless. Late this afternoon a strong wind came up, the first that they have experienced. A,T,Brownie and R observed on windy night, 9 P.M. A powerful wind is blowing from the north, striking the house with great force and causing the trees to roar. The eucalyptus trees 250 yards to the east sound like a train going over a bridge. and pine needles are gathering in drifts. I went out to see how my proteges are bearing up under it. (Temp. 59). Archie and Terry are lying quietly in their beds. Brownie is snug behind the wind screen at the dormitory tree, but swaying about somewhat. Rhody in his tree on the bank to the west seems to be getting the full benefit of it, and with the aid of a flash-light, can be seen swinging about but holding on manfully. Curious how he prefers a strategical position to comfort. I wish he would accept civilized shelter as B does. October 23rd. to 26th., incl. (Note written 27th.) No changes during this period amongst the thrashers and road-runners. It continues to be a relatively silent time for the thrashers and Brownie has not been so conspicuous as usual, though in his regular roost every night. Rhody continued to occupy his present roost. I asked Dr. Emlien who talked before the Cooper Club on the night roosting habits of birds, whether in his experience, the sol-