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Mixed Diglossini, May 11, 1963, VI.  (24)

^[[165 166 Cy]] ^[[XXX N]] preceded by 3-4 Intro "Tsit" Notes. Then Whitestarts ^[[two checkmarks]] fly on. Not followed by anything else. A minute later Cy ^[[two checkmarks]] flies off, opposite direction. Also not followed. Sings some more in small trees across road. A single [[underlined]] Dubusia ^[[checkmark]] [[/underlined]] j ---> Cy. Cy flies on. [[underlined]] Dubusia [[/underlined]] does not follow - or, at least, not immediately.

At this point rain starts to come down in torrents. Leaving 10:00 am.

SEE ALSO TODAY'S NOTES ON GENERAL MIXED FLOCKS

COMMENT:

It has just occurred to me that there [[underlined]] may [[/underlined]] be a general rule which could explain [[underlined]] some [[/underlined]] of the variations in social behavior of Diglossini. It might read as follows:

^[[Gen]] Within any given [[underlined]] region [[/underlined]] (e.g. the Sierra de Mérida, the Eastern Cordillera of Colombia, Northern Peru), if there are differences between the reactions of Diglossini in different areas (e.g. Paramó de Guasca, Guadelupe, Gardens of Bogotá), then individuals of different species living in more open areas will tend to have [[underlined]] fewer [[/underlined]] "contacts" (either physical and/or vocal) with one another than species living in less open (ie. more crowded with vegetation) areas, and/or their contacts will be more openly hostile.

Some examples may be cited:

I  The Sierra de Mérida. Three different areas. (1) The area around first Teleférico Station on Pico de Espejo, an area of relatively dense forest and (occasional) patches dense scrub. Territories different species overlap, and individuals of different species come into contact with one another without fighting. (2). Paramó La Negra. Region

Transcription Notes:
Moved "-ion" from beginning of next page, per hyphenation rule.