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[[circled]] 3 [[/circled]]

ed flocks(s) here does (do) not seem to have any "permanent" or "semi-permanent" leaders (and/or species playing a purely passive nuclear role). At one time this morning, different species were "leap-frogging" over one another at a great rate and/or milling about in a very confused-looking manner. (It is obvious, nevertheless, that such flocks are quite "coherent", insofar as different species stay close together for relatively long periods of time.)

If any one species is more of a leader than any others, it is the PR Atlapetes. 

I think that my 1962 comparison between flocks of this type and chiriqui flocks [[underlined]] minus [[/underlined]] BCBT's probably was a stroke of genius. Also probably quite correct. 

II. In general, the mixed flocks of the whole Bogota area (including Guadelupe) seem to be quite the same now as in 1962. Still, there are fewer mixed flocks on Guadelupe than above Guasca. And still, it is difficult to say why this should be. 

III. The mixed flock situation here seems to be essentially comparable to the corresponding situation in the Sierra de Merida in one important respect. In both areas, mixed flocks are
[[underlined]] not [[/underlined]] more common in the non-breeding season than in the breeding season. Why?

IV There must be some basic biological resemblance between the mountains here and the Sierra de Merida. 
[[margin, in red]] Gen [[/margin]]
Not only are mixed flocks similar in both area, but the local diglossini are more gregarious during the non-breeding season than during the breeding season in both areas. (In this respect, the diglossini seem to differ from all related species.) Why??? (Note also that the