(412) My principal concern in this connection is to determine whether they roost near each other or far apart. Sept. 22nd. At 7:30 A.M. the thrashers could not be found on the place. About 8:30 I went over to Reynolds' Territory. Nobody had seen the thrashers. On my return about 9 o'clock, I heard them some distance off at my own place, so entered the glade and called. In perhaps 5 minutes (a slow response) both came in, Brownie full of explanations as she sat patiently on my knee. The only evidence of moultting that can be seen--and it is the same with both birds-- is in the short outside tail-feathers and small, new feathers at the "bend of the wing", the wrist, I believe. There are about two of these on each wing and it looks as if they were those that make up the false wing (?) at the point where the rudimentary digit is located. Nesting complex. True to most recent form, after both birds were satisfied, Brownie was found making for Room A. She sat there resting, and in a few minutes, Greenie approached along the ground carrying a forked twig which he carried up to Room A. As I left, both birds were mess- ing about at that point. Before Greenie's arrival, Brownie was on the point of full-song--the symptoms are clear--when she became nervous about Julio and a long ladder that he was bringing out of the tool house. (9:35) While she was on my knee I noticed that same kind of small, flat fly on top of Brownie's head that is so often seen on and crawling under the thrashers' feathers. She made a slight attempt to get rid of it by shaking her head sidewise, but the fly was practically at the point of least movement (center of oscillation) and was not disturbed. At 9:50 I renewed the supply of soft-food in the glade. The thrashers were there. A fly was still on the top of Brownie's head crawling in and out of her feathers. No attempt was made to dislodge