1671 May lst. 1938. 9:50 A.M. Up till now intermittent sun and cloud. At 7:30 A.M. (Julio) All thrashers and Rhody home; N2 in the nest; Neo and the two young thrashers coming to him for worms. Between that time and 9 A.M., Rhody, who took the initiative in showing the way to the tool-house four times, refused all mice of- fered--big, little, white, brown, black--each time finding it neces- sary to interrupt his contemplation of them by rushing to the magpie cage. At 9 A.M., when I went out, he led the way part way to the tool-house and again decided in favor of the magpies. I then found all the thrashers at home--N2 still in the nest. At 9:40 Neo and the two youngsters rushed toward me on seeing me; Neo insisting on doing all the feeding and treating the chicks im- partially. N2 now called in loud musical phrases for relief (I supposed) but Neo hung about me hoping for more worms. My supply was ex- hausted and I went for more. I hoped to witness the change of shift and discover if there were one egg; but when I looked at the nest, Neo was sitting solidly on top of N2 and showed no sign of leaving; so I came in to write this note. At 10:05 Neo was incubating solidly, all alone. This means one egg, with little doubt. These youngsters appear as large as their parents--in fact larger than Neo; perhaps on account of his bobbed tail. Their tails and bills are not of adult length as yet; but they are long enough so that they can not be distinguished from their parents by a casual glance. Already I have been fooled several times. ( I shall be absent the rest of the daylight hours). On my return about 7:30 P.M. Julio had a written log of the day's happenings, which in substance was: Confirmation of the presence of one egg in the nest; Continuous incubation by the parents except for one 20 min- ute period from 1:40 to 2 when a third thrasher was present nearby, exciting all the birds, including the youngsters. Continuous presence of the chicks in the vicinity of the nest and their being fed by both parents. Rhody's refusal of mice in the morning, but coming to the dining-room window at noon looking for somebody to feed him, and his following to the tool-house and being rewarded. May 2nd. All peaceful in the thrasher world--the youngsters remaining in and about the sage patch all day and getting tamer; parents feed- ing them faithfully and incubating continuously--the bird on duty occasionally calling for relief and its mate responding. These calls are always phrases of full song. Sometimes the absent mate replies with song and then comes, and sometimes comes quietly without vocal- ization. Rhody, after refusing all sizes and colors of mice, also meet between 7 A.M. and 8:50 (although he had followed to the tool-house each time) suddenly, about 8:40, without being invited, burst out of the magpie cage on seeing me and ran with such speed toward me as to raise a dust (first time noted). He wanted a mouse instantly and One egg? Appearance of first brood.