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[[circled,upper right]] 33 [[/circled,upper right]]

an awful lot of them !!!


Two tree-keepers (same species) became involved in a fight. This was the only overt hostility observed within the flock.

When first seen, the flock was moving rapidly down hill. Then turned around and moved rapidly uphill. Moving much more rapidly and coherently than any other flocks I have observed in the Andes (with the possible exception of the brilliant flock near the Paramo de Guasca - when it was at its best.)

Two or three [[underlined]] Buthraupis montana [[/underlined]] were also associated with this flock throughout the whole period the flock was watched (approximately 1/2 hour). But their association appeared to be "coincidental". The Buthraupids flew by, occasionally, back and forth, without paying any overt attention to the flock. And they remained behind when the flock left!! The Buthraupids uttered quite a lot of "seeee seeee seeee...." Notes in flight, both when the flock was near and after the flock had left. Usually or always in tree-tops. Certainly never functioned as leaders.

NOTE: I am beginning to think that my identification of the "BYB" yesterday was mistaken. I may have seen a Yellowbelly instead.

[[Right justified]]
November 6, 1972
Mares

Arrive 5:35 am. Clear. Not much early morning song. No DC. Birds obviously past peak breeding season.

6:00 am. See a group of 4 BYB's flitting thru tree-tops Appar[ently]

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