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Mixed Diglossini, Apr. 3, 1963, VI. [[circled]] 16 [[/circled]]

[[margin]] Brun [[/margin]] 4:58. See another single Brun further on, same scrub. Just about 30 feet from where [[underlined]] Thlypopsis [[/underlined]] was seen.

[[margin]] Brun [[/margin]] Then see the [[underlined]] Thlypopsis [[/underlined]] ("Thly") in bush a few feet from the Brun. Brun supplants it without display! Then Brun feeds on red flowers.

[[margin]] Brun [[/margin]] 5:05. See another Brun a few feet further on. They are thick around here!

[[margin]] Brun [[/margin]] 5:40. Single Brun perched exposed on top of low scrub, 3 ft above ground, in open but wet country 8800 ft. Utters song phrase Moderate length. Very twittering. Probably based on "Zeewee" Notes, but quite fluctuating. Then flies to low bush 20 ft away, lands near other Brun. One or both birds utter twittering song phrase as greeting. Definitely not R - za za type. The joined bird then ignores the joiner. Joiner flies away to another exposed perch about 2 ft from ground. Apparently not followed. Sings another twittering song phrase, as before. None of these song phrases has included any R component. 

[[margin]] Brun [[/margin]] Actually, I think I can hear several birds uttering similar song phrases in this area 5:50 p.m.

It is amazing what a difference humidity makes! I shouldn't be surprised if this whole area between 8100 and 8800 contained about as many diglossines per unit area as the Nono region. Lots of thick low hedges along rivers & streams, on slopes, and along boundaries of crop fields (which are still abundant in this area). Relatively few trees, and very few tubular red flowers (probably less than up above Tarma, although belonging to different species).

Incidentally, I know why the hills all around here are so bare. They are burned! This afternoon I saw whole hill sides which must have been covered with thick humid scrub until very recently but which