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95 Mixed Diglossini, Apr. 26, 1965, II I never actually saw the birds. So I may well have been mistaken. [[left margin]] Gen [[/left margin]] It was my impression, this morning, that there was a "vacant niche" here, available for occupation by Diglossini but not occupied now. Is this possible???? [[left margin]] Gen [[/left margin]] It also occurred to me that birds of medium altitudes in the Andes are less adaptable than related forms of both high altitudes and low altitudes, insofar as they don't seem to become commensals of man very rapidly (or, at least, many of them don't). Is this because there was little scrub or edge in the original vegetation of medium altitudes? Scrub & edge birds seem to adapt to human habitats more rapidly than species of deep forest. [[left margin]] Albi [[/left margin]] This might help to explain why Albis do not seem to be "garden" birds anywhere. This afternoon working around University, Start garden #1 near Facultad de Farmacia 4:30 pm. [[left margin]] Humer Scan [[/left margin]] One Humer and one Scan feeding opposite side Yellow Albi bush. No overt hostility - But Humer gradually works its way over nearer the Scan. Then supplants Scan. A minute later supplants a Peewee which also happens to be in bush. This latter incident may have been redirection. [[left margin]] Humer [[/left margin]] If not, it suggests that Humers are at least mildly hostile to all small birds, not only serious competitors. [[left margin]] Scan [[/left margin]] Lots of fights among Scans 4:38 [[left margin]] Bari Humer [[/left margin]] Garden #3. See male Bari feeding along Red Albis. Then a Humer suddenly attacks and supplants it. Male Bari only retreats a couple of feet. Humer breaks off attack and returns to where it came from. [[left margin]] Bari [[/left margin]] Bari perches. Only a couple of feet from where it was before. I must say that Baris are seldom very discouraged by attacks! And seldom
Transcription Notes:
"Peewee" appears to be correct- there are peewee species in S. America
