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Atlapetes, Apr. 4, 1963, IV.   

[[image: sketch of a bird]]
  
Then there was some more "fiddling" back and forth between the 2 birds. Again, I couldn't follow it. One bird ([[male symbol]]?) repeatedly assumed St's or low int. movs. of St's. Usually after and/or before slight retreats. Possibly also traces of Low Bow.
  
I think that all the really extreme ritualized postures during this encounter were silent. But then one of the birds (presumably the [[male symbol]]) began to sing in a weak St. posture. First simple whistles, "Wheeeeooo"s. Then the other elements of typical song were added, as the bird gradually relaxed and dropped the St.
  
7:30-7:45. [[Male symbol]] apparently alone again, singing full songs, as before, in more or less unritualized perching posture.
  
It seems very likely that this whole incident was an unsuccessful copulation attempt, followed by vigorous hostility between the mates.

Atlapetes, I  
 
April 5, 1963
Near Tarma

7:10 a.m. [[green pencil]] 9700+ [[/green pencil]] Working in dense wet scrub along ravine. Came across a pair of what is probably the same "PL" species that I saw yesterday. But today notice that their crown pattern is different from that of the PR's I have seen in other regions.  Comme ├ža
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