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[[circled]] 27 [[/circled]]
Now everything very quiet and calm.
3:45 pm. The weather is [[underline]] perfect [[/underline]] now - and there is no sign of life anywhere! I think that it is pretty well established now that good weather (i.e. sunshine - and presumably heat) has a depressing effect on mixed flock formation while bad weather (i.e. fog and rain - at least not too much rain) has an encouraging effect (I don't know the effects of strong wind per se.) This presumably is further evidence that there is no selection against the formation of mixed flocks here. (Vide the contrasting situation in the Eastern Cordillera and the Sierra de Me'rida.)
Presumably [[underlined]] both [[/underlined]] the noisy group of cyanocephala and the mixed flock seen when I first arrived here this afternoon were "after-effects" of the preceding rain and/or cloud cover. Bad weather probably stimulates intra- as well as inter-specific flocking. 
The "Acorns" are still around everywhere. But they don't seem to be really flocking together. At least not forming groups larger than pairs or families. 
Some bird songs starting 4:23 pm A couple of birds uttering "Ta zee zee zee" phrases. One of the Whitestart species ???
Nothing more. Leaving 4:48 pm
[[margin, in red]] Cy [[/margin]]
Just as I start to go, see Cy in tree, 30 ft up. Apparently looking for insects in bark and moss. About 6 ft from a pair of "Acorns". One of the "Acorns" flies at, attacks, and chases the Cy! Cy comes back. Now [[margin, in red]] Cy [[/margin]] I can see there is a pair Cys. [[two red check marks]] [[underline]] Three more times [[/underline]], during the next five minutes, one of the Cys is supplanted by an "Acorn"!!! Obviously hostile supplants! And each time the Cy comes back to the tree to resume feeding Does nothing but probe into bark large branches. No attempt to pick insects off leaves. (And there are no flowers in this tree.)