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Mixed Diglossini, Sept. 4, 1965, VI.              124 

[[left margin]] Gen [[/left margin]] 
western Cordillera of Colombia than are the Central and Eastern Cordilleras. As far as the Diglossini are concerned the series is: Western Cordillera --> Sierra de Merida --> Central and Eastern Cordilleras. 

[[left margin]] Gen [[/left margin]] 
(This is rather different from the comparable series of changes in Allogregarious behavior, among tanagers, finches, etc., which is: Western and Central Cordilleras --> Sierra de Merida --> Eastern Cordillera.) 

[[left margin]] Gen Glor Carbonaria [[/left margin]] 
NOTE: The scrub or forest here is very dense - where it is not interrupted. But, of course, it is interrupted by a few grassy patches. And it is just along the edge of these grassy patches that the Laf disputes were seen this morning (and the Laf-Cy Song overlaps were heard). Vegetation apparently too dense, on the average, for Glors here. (Altho I am not sure that it is too dense for other carbonaria s.l. populations of other parts of the Andes - e.g. some northern Bruns). 

September 5, 1965 
Páramo Zumbador

Going to work in same area again this morning. Arrive 6:09 am. Just getting light. This is just within lower limit fog level this morning. Cool. Little wind. 

[[left margin]] Laf [[/left margin]]
First Laf Songs 6:17 am. Several birds starting almost simultaneously. Scattered over wide area. Songs long and vigorous. NODWAH. 

[[left margin]] Laf carbonaria [[/left margin]] 
NOTE: It still is quite dark (or, rather, barely light). I.E. the birds here are starting early - for Lafs. This is about the time when one would expect carbonaria s.l. to begin. Are the Lafs early here because there is no carbonaria s.l. in the neighborhood???)

Different Lafs are completely overlapping one another. 

Transcription Notes:
Páramo Zumbador