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Cyanerpes, Feb. 1, 1958, II    37

without actual fighting. There was also a lot of G-ing by birds during mutual displaying, especially by [symbol for female]'s, but it would be difficult to say exactly how much, as some of the apparent G's may have been accompanied by notes which I didn't catch.

As far as I could determine, the Blues confined their hostile attentions strictly to their own species. (Contrast with the behavior of the Greens during the same disputing today!!)

This was so much more hostility than I have ever seen before in a flock of Blue Honeycreepers that it suggested that the breeding season may be ready to start.

Cyanerpes, I, February 4, 1958, Barro Colorado

A pair of Shining birds showed up again today. Feeding in the Balia by Chapman House. I watched them for quite a long time. Quite silent, and without a trace of any ritualized postures or movements (not even CR), except for TF's and WF's quite like those of Blue Honey creepers.  Quite ignored the HCN's of Blue Honey creepers in the same tree.

This species looks possibly a trifle heavier-billed and shorter tailed than the Blue Honey creepers. 

I watched a pair of wild [symbol for male]'s uttering HCN's this evening near the Balia Tree.  They were sitting quite hunched, with all feathers quite ruffled, including CR; but this may have been some sort of after-effect of a terrific rain storm we had last night. Lots of birds seem to be unusually fluffed or ruffled today