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[[circled]] 34 [[/circled]] Tangara, Mar. 3, 1959, I. [[margin]] 3 vertical yellow lines 1 vertical crosshatched yellow line [[/margin]] year. Again mostly by themselves. (Actually since the Bush-tanager mixed flock association which was so prominent last year seems to have devolved now, there isn't too much the Silver-throats could associate with.) But I have twice seen a Silver-throat (the rarer bird, in rapid succession) fly to a branch where a Common Bush-tanager was feeding. Probably just looking for the same food, but it is the nearest thing to a positive inter-specific social reaction I have seen this species perform. [[margin]] 3 vertical violet lines 1 vertical violet cross hatched line [[/margin]] When we first arrived, we caught a brief glimpse of a pair of Speckled Tanagers (chrysopterus = [[image]] violet cross hatched horizontal line [[/image]]). They flew away almost immediately; but I did have time to notice that they uttered ordinary "Whit" or "Whit whit" CN's in flight, rather than the buzzy CN's of the Silver-throats Tangara, I July 11, 1959 Cerro Campana [[margin]] 3 vertical green lines 1 vertical green cross hatched line [[/margin]] Watching Bay-headed & Silver-throated Tanagers again. One Bay-headed (probably male) stayed by itself all the time (1 hour) that I was watching it. Mostly just sitting. Sometimes hopping around a little bit to feed. Did a lot of singing. Usually when sitting; sometimes more or less when feeding. The song of this bird was just about as I remember it. Like a very thin, "wiry" version of the Palm Tanagers [[illustration of a bird]] song, also just slightly reminiscent of a Sporophila. Most song phrases seemed to be introduced by 2 introductory notes. Usually 2 very soft trills or rattles. Possibly [[unfinished word]]