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[[underline]] Cyanerpes, [[/underline]] May 15, 1963, V. 110

7:58 Wild ♂ Yellow-leg comes to visit captives. Hangs on outside of cage. Both II Birds inch toward it, utter many R's in St. No Q. ♀ II stops rather soon. ♂ II continues longer. Visitor eventually flies away.
Visiting ♂ back again. This time one or both of the II's (almost certainly the ♂ if only one) "greets" visitor by uttering Buzzes (fairly soft, no Twang) in St!!! Visitor flies away again.
Again visitor back. Again greeted with St & Buzzes by ♂ II. Visitor leaves again.
Leaving myself 8:10 am.

[[underline]] NOTES [[/underline]]
The reason that Bowing and Pivoting are not mentioned in connection with most of the ♂'s approaches in the preceding account is that they simply did not usually occur in such circumstances. This species seems to lack the ritualized Bowing of some related species.
It is possible that the female showed a trace of St and/or [[underline]] very [[/underline]] slight Q which I did not see before some of copulation attempts described above, [[underline]] but, [[/underline]] if so, they must have been very weak indeed.

pm. Going to let another ♂ & ♀ Yellow-leg together, by removing partition between them. Call these birds "III". ♂ III has been in cage with ♂ II for months; ♀ III with ♀ II.

Let together 4:30 pm. Rush close to one another. Both in extreme St's, bodies nearly vertical. Both utter R's. Then ♂ utters a few loud Buzzes (without twang). Then they separate. Sit silently at opposite ends of the cage.
♀ utters long series PN's in unritualized posture. Then sudden