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4

Aramides cajauea, June 17, 1960 IV

most frequently, when all the birds are close together in their box, but awake and jostling one another, and when they are all following me, in a more or less compact little group. The P Notes seem to be the most of [[?]] which have been called "contact notes" in other species. Possibly produced by mild thwarting of some gregarious instinct (if so, presumably milder than the thwarting producing LC Notes.)

The P Notes are slightly variable in sound, varying from something like "Wheet" to something like "Wheeoo."

They would appear to be almost exactly intermediate, in actual sound, between typical LC notes and typical AlCN's. Which might suggest that all 3 types of notes have become differentiated from a single "primary" call or call mechanism (possibly before hatching).

I was not aware that the P Notes were really distinctive when we recorded the birds this afternoon. So they are not labelled on the second in any way. It is possible, however, that one or two P Notes may have been uttered from time to time by either one or both birds we recorded.

The comparatively specific vocabulary of the birds, i.e. the apparently absence of generalized distress notes, would seem to be a very [[?]] character.

As far as I can tell, these birds do not have any special food, begging (?) or feeding call.  Nor do they seem to have any special threat call (although they do peck at one another occasionally, in what may be an indication of hostility).

When escape behavior seems to consist of nothing more than running away from a disturbing stimulus (and AlCN's). They do not seem to have any sort of crouch pattern!

By this evening, all the birds were performing quite vigorous preening & scratching movements. After begin fed