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[[circled]] 15 [[/circled]] [[circled]] 53 [[/circled]]

the lead of the whole flock. Both went along with the XLIV's for at least 100 yards (as long as I could follow them).

[[margin in red]] Brun [[/margin]]
[[margin in red]] Myst Brun [[/margin]]
Some time later, I saw a ^[[1 check mark above]] single Brun about 50 yards down hill from where the Myst was seen earlier today. Certainly not the same Brun that was associated with the mixed flock. But it was in an area of low, open scrub, interspersed with grassy patches - just like the area in which the Brun with the flock was seen. These areas are quite different from the areas of [[underlined]] thick [[/underlined]] scrub and low trees in which the Mysts have been seen. Possibly the Bruns prefer, or can only occupy, relatively open scrub in the wet and high region. If so, the ecological separation of the three diglossinis here is obvious. CC's are largely or completely confined to areas (probably usually or always relatively open areas) in the vicinity of human habitations. (Even the CC attacked by an Orange-head, see p. 41 above, was quite close to the village of Unduavi.) Bruns are largely or completely confined to relatively open areas, both near human habitations and far away (probably most often the latter). Mysts are largely or completely confined to areas of thick scrub, usually or always far from human habitation.

[[margin in red]] general [[/margin]]
[[margin in red]] Myst [[/margin]]
As far as I can tell, the territories of different species of Diglossini do not overlap in this region. But they can certainly be adjoining. I have seen a Brun territory adjoining a CC territory, and another Brun territory adjoining a Myst territory. So far I have not seen a Myst adjoining a CC.

[[margin in red]] Brun CC[[/margin]]
It is beginning to look as if Mysts are much less likely to join mixed flocks than are Bruns (or CC's). Does this suggest