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[[circled]] 14 [[/circled]]

Mixed Diglossini, Oct. 22, 1962 I  

[[left margin]] Humer Laf [[/left margin]]
Lafs and "Humer"s here do not overlap.

All songs less frequent by 6:35 than earlier in morning.

[[left margin]] Laf Humer [[/left margin]]
Rain continues steadily. Some times light, some times heavy. Lafs still singing off & on 7:45. "Humer"s gave up long ago.

I think that all the "Humer" songs heard this morning contained 1 (or possibly 2) R components. Probably always sub-terminal.

[[left margin]] Humer Laf [[/left margin]]
Then, 7:48 am., there is a moderately bright spell. The "Humer" whose songs overlapped with Laf earlier begins to sing again. Again songs overlap with Laf songs quite frequently. This time Laf nearby. Then "Humer" shuts up. May leave (quite invisible al the time). Then Laf sings apparently from same bush in which "Humer" sang!!! Then Laf shuts up as fog comes in again.

[[left margin]] Humer Laf [[/left margin]]
Then same "Humer" sings again a few minutes later. This time alternates phrases with neighboring Laf.

[[left margin]] Humer [[/left margin]]
8:23 am. Hear a couple of "Zreeeeeeee-zah-zuh" patterns. Again bird(s) not seen. "Humer"(s)?

Leaving 9:00 am.

[[left margin]] Humer Laf [[/left margin]]
I don’t really know if the "Humer"s heard today were humeralis or not. But I will assume they were. If so, it seems quite probable that the relationship between Humers and Lafs here is different both from the relationship between Aters and Lafs near Quito and the relationship between the various diglossines of the Sierra de Mérida. The male Humers and Lafs here may well be reacting to one another as if they were members of the same species!

[[left margin]] Humer Laf [[/left margin]]
There is little or no difference between the habitat preferences of the "Humers" and Lafs here - unless the "Humer"s are partly