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[[underline]] Cyanerpes, [[\underline]] Mar. 7, 1958, II (58)

Before I forget, I should add that the capture ♀ Shining gave excited R's toward mating wild ♂ Blues this morning before I caught the ♂ Shining. I.E. she seemed to be reacting to them as if they were members of her own species. I don't remember seeing this before, however; so it may be just that her motivation was very high.

The captive ♂ Shining is now giving a Bzz & St & BL & belly fluffed performance every time the ♀ comes near him.

(Actually, in many of these cases, I am not sure that it is not the ♀ who is giving the Bzz's But this doesn't affect the general conclusions, as she usually shows some St, too.)

Now I have just seen a particularly extreme case in which it was certainly the ♂ doing the Bzz's But it is obvious that the Bzz is only accompanied by pronounced opening & closing of the bill when it is very high intensity (This may be the only time that the wings are slightly drooped too.)

I have now seen the ♀ rush again & again toward visiting Blues (of both sexes) with pronounced R, in spite of the fact that she now has a ♂ of her own species with her. This pronounced aggressiveness is also rather reminiscent of the Greens. (This sort of reaction might certainly be considered an indication that the R is more aggressive, on the average, than the Bzz.)

[[underline]] Cyanerpes [[/underline]], I           March 9, 1958 
Barro Colorado
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