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Mixed Diglossini, July 25, 1965, III.  (55)

^[[Cy Albi]] [[underlined]] low [[/underlined]], thick scrub. Disappears from sight. This is [[underlined]] exactly [[/underlined]] where [[female symbol]] Albi and "Coer" were seen a couple of days ago. [[underlined]] So territories Albi (s) and Cy definitely at least partly overlapping here. And apparently not stratified [[/underlined]]

^[[Cy]] 7:55 A few yards down road inside forest. Hear what are probably Cy Song phrases. Long, including many notes, formless, high pitched. Little or nothing in way of Intro. Coming from way [[underlined]] up [[/underlined]] in tree tops. Bird invisible, but at least 30 ft above ground NODWA

NOTE: Thinking it over, I am not sure that I have heard [[underlined]] any [[/underlined]] Albi R's here!

Leaving 8:35 am.

COMMENTS:
^[[Brun]] I. The Bruns at relatively low altitudes seem to be playing the same social role as Cys in the southern part of the Western Cordillera. Arboreal and "semi-communal".

^[[Cy]] II. This may help to explain why Cys are rarer here than in the southern part of the Western Cordillera.

^[[Cy]] III. My observations, such as they are, also would suggest that the Cys here are playing somewhat the same role as [[underlined]] carbonaria [[/underlined]] s.l. in many other parts of the Andes!!!

^[[ [[underlined]] Gen [[/underlined]] Bari Albi]] IV. All this would suggest that many or all Diglossa spp. have "equal potential." I.E. they are capable of playing the same role or occupying idential niches. Whichever species occupies a particular niche in a particular region may be largely a matter of "change." I.E. it may depend upon which species "happens" to develop suitable habits first. (Note also the Baris in Chiriqui - which seem to be occupying "typical" Albi habitat.)

Transcription Notes:
Moved "-jacent" to end of previous page, per hyphenation rule.