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[[underline]] Saltator, [[/underline]] I
[[circled]] 12 [[/circled]]
April 17, 1958 K-6.

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I have been struck again + again by how much the "chuck" Notes ( - - - .)[[each note a little shorter and lower than its predecessor]] given by Streaked Saltators flying away from me as they come down to land another perch resemble the regular notes of Palm Tanagers in the same circumstances. Almost identical in fact
 I have now heard another Streaked sing repeatedly without a trace of rattle or rattle undertone.
Several Buff-throats flying about near we have uttered rather thin + weak "Wheet" Notes. Either single, or, when they fly up or off, a brief series (i.e. like some of the tanagers) These birds may have been a little nervous about my presence; so these "Wheet"s may have been either CN's or ALCN's. I think they may at least have been CN's like the "chuck" Notes of the Streakeds (The rhythm was the same when they occurred in series, although the actual sound of the notes themselves was quite different.)

[[underline]] Saltator, [[/underline]] I 
April 28, 1958
Rio Chucunaque

There are a number of buff-throats here who occasionally come near me when I am sitting down watching other birds They usually utter the thin weak "Wheet" Notes described above, April 17, with every  sign of nervousness, i.e. crouched pre-flight posture and TF's I am now tending to the opinion that these  [[underline]] must [[/underline]] be at least a relatively