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[[underline]]Cyanerpes[[/underline]], Mar.23, 1958, II       71

the dominant bird in most circumstances aside from display. I.E. when the 2 birds are just hopping back & forth across the cage, the ♀ usually flies off when the ♂ lands beside her (It is possible, however, that part of this apparent timidity of the ♀ is due to the fact that she is more alarmed by my presence than the ♂ - as she certainly seems to be.)
   Conveniently enough, this afternoon I saw the ♀ of the other pair of Shinings (unbanded) give a SR with H, just like the ♀ described above, when her ♂ approached her too closely.

[[underline]]Cyanerpes[[/underline]], I        April 5, 1958
                                             Barro Colorado

   A most peculiar and prolonged incident between 2 of the Blues today--the yellow right ♀ and the blue left ♂, of all birds! Late in the evening just about when the birds were going to roost
   My attention was first called to the incident by a long series of loud HCN's, coming from inside one of the Pagoda Bushes (The leaves of this damn bush obscured a good deal of the birds from time to time, but I am sure of the following.)
   The ♂ was uttering HCN's quite rapidly, rather irregularly, only a few seconds apart. This was accompanied by quite rapid Bowing, rather like the more variable bowing sometimes accompanying hostile disputes between ♂'s, but much