1685. still searching and calling from the ground. By map this scales 190 yards from his new nest. The question naturally suggests itself as to whether, in the event of another female responding instead of N2, they would mate. At 12:05 Neo was back again in his home area, coming through his regular passageway under the fence to eat soft food from the dish kept there. (About midway between his nests 1 and 3). After eating a worm contributed by me, he climbed a tree and called loudly once. There was instant response from the east. Neo's call was not repeated, but in a few minutes, there was low talk in the vicin- ity of the nest; so his search appears to have ended at home. May 26th. and 27th. During this period Neo was seen only once, and then he flew away when I appeared on the scene (27th.). Not another thrasher was seen at this place these two days and almost no song was heard, even in the distance, the exception being a few early calls (about sunrise) both days. Neo's third nest seems ready for occupancy, but from present indications, it looks as if it would not be used. Rhody, during this period, showed no departure from recent routine: Almost continuous occupancy of his house-nest in the gum tree; with short periods of play with the magpies and coming for his mouse rations. He had two mice each of the days and one piece of meat. Sometimes he displayed with the mice and sometimes not. He did no singing and omitted his newly acquired "creep-and-wahnk" behavior in the presence of Julio. His roosting time seemed to bear no relation to daylight hours or weather conditions, except that he was already in bed long before sunset and might get up any time. He continued to show discrimination as to size of mouse taken. May 28th. 9:45 A.M. No change as yet in thrasher situation. Rhody was in bed at 7:45 and did not come down until about 9:15, when he came for a mouse, but rejected all offerings until I got a tiny one not quite so large as the end of my thumb. Larger ones he allowed to escape into crevices between rocks and watched interestedly while we tried to get them out, preening at the same time. Occasionally he would pretend to hunt for them, but instead of carrying his search to a logical conclusion, would come back to me and wait for another one. Finally he left for the cage, but when he saw me approaching with the small mouse in my hand, immediately flew down and ran to me for it, gobbling it at once. Apparently a clear case of "knowing" exactly what his food requirements of the moment were. After disposing of this mouse Rhody was back in his house again in a few minutes. (Is this increasing domestication--assured food-supply, growing laziness, or a manifestation of old age, or the reproductive instinct--incubation?). (On second thought: per- haps this is the mere automatic carrying out of what should be his normal behavior at this season, viz: doing his share of incubation). About noon Rhody, someplace out of sight, saw me giving a mouse to the temporarily captive gopher snake (who "constricted" and ate it promptly) so presented himself as an additional candidate and was accommodated.