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[[underlined]]Cyanerpes[[/underlined]], I [[circled]]79[[/circled]]
April 23, 1958,
Barro Colorado

I finally put the 2 ♀ Blues back in the aviary with the males this afternoon. There wasn't much in the way of a reaction. The ♂'s flew to them and followed them, off and on, but I couldn't tell what the motivation of the ♂'s was. 
The Shinings were quite hostile to the ♀ Blues. The ♀ Shining in particular attacked both ♀'s Blues at first. It is obvious, in fact, that the Shinings react to Blues almost as if they were the same species (as if the Blues were "sub-normal" members of the same species). This is also evident in the reaction of captive Shinings to wild visiting Blues.
Shutch is probably correct in saying that ♀'s only attack ♀'s, and ♂'s only attack ♂'s, (although both sexes may display at birds of the opposite sex). This seems to be true of both species of [[underlined]]Cyanerpes[[/underlined]].
Both [[female symbol]] Blues spent a lot of time in a fluffed posture this afternoon after being let loose in the aviary. Difficult to interpret Looked perfectly "normal", occasionally associated with preening and/or other comfort activities.
Notice shape of head
[[sketches of two birds]]
The ♀'s have a "crest" too.