thought they might be the two thrashers, so this was a good time to have a look in the nest. We went there, but there was a thrasher in it facing now in the opposite direction. I placed a ladder and reached up until I located the bird's bill, then fumbled about underneath and found one egg. The bird was not identified, but it was Greenie, of course, that laid the egg. (Evidently the birds do not know that this is Friday the 13th.) Thrasher nest 5. This is nest No. 5 for the thrashers and nest No. 47 of all kinds for the year to date. (It is their 13th. egg this year, 13th. month they have been seen together, but (they chose a branch on which a horse-shoe had hung for months!) but Incubation begins 10:18. The birds seem to have begun regular shifts. Until 10:15 there was a bird on the nest whenever I went there. A little before that time the bird in the nest called: Weet, weet, Cha taw twice, with a few warbling phrases preceding and following. As there It leaves. was no response, it left and climbed to the top of the old oak and called loudly, beginning with three distinct flicker calls: Yay-cup , yay-cup, yay-cup, following this with song. This was Brownie, because in slightly less than 2 minutes, while B was still singing, G came and covered the eggs. B leaves nest 10:45 There was a bird on the nest at 10:35. In the glade I found Greenie, hungry and getting still tamer. B did not wait for his mate's return, but suddenly appeared in the glade without having called for relief. Greenie then returned to the nest promptly. (Ver- ified by going there). The birds are leaving the eggs uncovered longer than noted with the other nests. Possibly this is the practice in the earliest stage of incubation. Both at nest. 10:55. One in the nest and one on it. The one in talking in pantomime with widely opened bill, the other occasionally leaning forward and touching it gently.