this vicinity--I should say: full song. Occasional under- or dig- ging song is heard from visiting birds. Broken-wing is seen less frequently, but other thrashers ap- pear occasionally. August 25th. Increasing tens- ion between O and C? About 9:30 A.M. there appeared to be a slight tension between O and C, shown mostly by C becoming "taught" on O's near ap- proach, with a tendency for him to seize O by the bill resulting either in retaliation or retreat by the latter usually. There was some posturing by C of obscure import, and while both were on the same perch at one time, C uttered some clear, flute-like notes rhythmically and differing in pitch. Nesting. About 10:30 Okii was much interested in roots found in the com- post heap. Chiisai was in the inner cage "fluting". When I went in he flew to the nest and began to talk volubly. He took and placed twigs offered. Okii came in to dig under my feet. Nothing of significance (to me) was noted after the first minute or so, both birds going up into the upper story to hop about from place to place with no clear purpose evident. I came in to make this entry. At 11:15, when the thrashers saw me coming, they flew from the inner cage to me, Chiisai a few seconds in the lead. He cocked his tail vertically when O landed beside him, approaching O at the same time. Nothing of consequence followed and they both fell to digging. Rhody ran true to seasonal form during the day: No display on being given a mouse; no nesting : no song. August 26th. to 29th., incl. During this period there was little nesting behavior on the part of O and C and nothing that might point to significant inter- est in each other beyond that already recorded. There were oc- casional passages of arms between them of short duration. One of them occurred when Okii, sitting on my folded arms, attacked Chiis- ai when Chiisai flew up to enjoy the same privilege. A smart in- terchange of blows to the head and beak followed, each bird seeming to direct his strategy toward seizure of the other's bill. As is usual in such cases when I interfere by interposing a hand or fin- ger, I was rewarded by a good hard pinch from Okii and an attempt to thrust my hand aside. This, again as usual, ended the affair. Okii's early promise of precocious full-song has not been ful- filled--the few instances of full song from him recorded here being about the only ones. Both birds, however, continue their digging songs regularly and at times carry them on for a short period after digging ceases. Rhody behaved about as usual, but with one slight departure from normal which indicated both his attitude toward strangers and the strength of the mouse-shopyard association which he has formed. On the 29th. four of us (incl. P.S.A. and family) sat by the cage. Rhody appeared on top of the roof, keeping pretty well out of sight, but peering over the edge occasionally. After a few minutes he accepted my invitation to follow to the shop-yard for a mouse. As I wished to show the visitors how he eats these creatures, I did not give it to him there, but walked w +But so far the adults stopped singing