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Mixed Diglossini, May 17, 1965, V (41) ^[[Ater 202]] 10:10. Another area. Edge large patch fairly low second growth. See 2 ^[[two checkmarks]] Aters flying around together. 2-6 ft above ground. Alone. Feeding on orange-red tubular flowers. Also picking insects off leaves. ^[[Scan?]] Catch brief glimpse hummingbird feeding white trumpet shaped flowers. Apparently typical Scan. Leaving 10:30 am. ^[[CC Gen]] NOTE: It was nice to see CC's associated with a flock in the second area visited today. Thus, their behavior toward mixed flocks would seem to be essentially similar to that of all the other non-commensal Diglossini. Their behavior [[underlined]] toward other Diglossini, [[/underlined]] however, may be rather different from that of the other local species. They may be the only one of the local Diglossini which has a full set of "mutual avoidance and inhibition" reactions - like all the species near Quito ^[[Laf Gen]] COMMENT: One aspect of diglossine "social complex" behavior was not particularly evident today or yesterday, but was fairly conspicuous during some earlier days. Yellow-faced Whitestarts start Singing shortly after dawn, and their Songs quickly reach a peak of frequency. Then they decline, very irregularly, during later periods of the morning. Lafs, by contrast, sometimes (perhaps usually) do not begin to Sing very frequently until after the frequency of Whitestarts Songs has already begun to decline. This must help to reduce overlaps between the Songs of the two species. (As I remember, this "delayed" onset of frequent Singing is characteristic of other [[underlined]] lafresnayei s.l. [[/underlined]] populations in other parts of the Andes. In many or all areas it (also) helps to reduce overlaps with [[underlined]] carbonaria s.l. [[/underlined]] Songs.) [[underlined]] Important [[/underlined]] I have found that some "Greeting Twitters" of PR Atlapetes
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Moved "-tlapetes" from beginning of next page, per hyphenation rule.