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[[circled]] 5 [[/circled]] Tangara, Nov. 29, 1957, II [[Left margin]] [[3 gray vertical lines; 1 cross-hatched vertical line]] [[/Left margin]] like a "song", but I don't think it is really the functional equivalent of the songs of most other passerines. But I must say that I have never heard anything else which might be a real song. (It would be nice, of course, if this highly gregarious species with comparatively plain plumage should turn out to have degenerate display behavior - just like the Spice Finch - see also Shutch.) [[Left margin]] [[3 blue vertical lines; 1 blue cross-hatched vertical line]] [[Left margin]] The Golden-masks may also utter accelerated series of CN's when they fly off etc; but these are accelerated much less, i.e. they are not integrated into a real trill. [[Left-margin]] [[1 gray crosshatched vertical line, 1 gray vertical line, 1 blue vertical line, 1 blue cross-hatched vertical line]] [[/Left margin]] Both species have the unusual tanager TF's and WF's, usually synchronized with CN's in the usual way. [[Left margin]] [[3 gray vertical lines; 1 gray cross-hatched vertical line]] [[/Left margin]] I have once or twice seen Plains do a G toward other birds (including a Palm Tanager) during a dispute over a Cecropia fruit. [[Left margin]] [[3 gray vertical lines; 1 gray cross-hatched vertical line]] [[/Left margin]] In general, however, they don't get involved in much disputing over food. [[Left margin]] [[3 gray vertical lines; 1 gray cross-hatched vertical line]] [[/Left margin]] I have seen one or two aerial rough-and-tumble fights (without being able to see what provoked them, or what followed them). Accompanied by loud & irregular series of harsh, hoarse, notes, presumably some form of HAC. Tangara, I. December 15, 1957, Barro Colorado [[Left margin]] [[1 blue cross-hatched vertical line]] [[/Left margin]] A [[male symbol]] Golden Mask came to the tree just above the aviary and uttered a lot of sounds in about 2 minutes before flying off again.
Transcription Notes:
The Plain-colored Tanager's Order: Passerine