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137

Ramphocelus, Apr. 28, 1962, II              

♂ suddenly utters a peculiar R. Sort of hoarse. First part really just a harsh rasp. This sounds low intensity or "incomplete" in some way. As if his voice weren't "fully developed" enough to produce a typical R. (Artifact of captivity?) Then another R of this same type 7:45. I shall call these sounds "RR." Then ♂ utters RR - "tsee-whee-hee" when ♀ lands beside him. The "tsee-whee-hee" is rather hoarse and whispered. Reminiscent of the "GHAC" of Sangres. Probably related to typical "eeyah" sounds of wild birds at end of Ф's. No other display. ♂ just starts to preen.

Then flies around cage some more 7:50. This time utters quite a lot of single TssN's as he flies about.  ♀ just sits on branch looking at him. TssN's sound quite like those of wild birds. ♂ twice lands right beside ♀.  No overt display be either bird. ♀ sitting in semi-hunched posture. Possibly just very relaxed.

♂ starts to utter NN's when monkeys appear in the neighborhood.

♀ goes down to ground to feed. ♂ follows. Then flies some more. Resumes TssN's when monkeys have passed. Then utters 2 RR's when ♀ joins him. Facing her in unrit. posture. (The ends of both RR's were almost typical R.) Then resumes flying with TssN's 8:00 a.m. ♀ preens.

♂ suddenly utters a jumbled medley of RR's, R's, and NN's when ♀ almost bumps into him in flight 8:05.

RR might be an intermediate between typical R and typical NN. (If so, how does it differ, in motivation, from ФR - eeyah sequences in Ф's?)

8:07. ♂ sitting on perch. Begins to utter soft,short "Trit" Notes. Much softer and shorter than typical TssN's. Not