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16

Aramides cajauea I. 
      
June 30, 1960
Barro Colorado

Did the usual series of tests with these birds this evening.

U. Uttered chirps when handled. Then started to utter Peeps immediately when isolated. Then fell silent. Then uttered more Peeps as isolation continued. Continued to utter Peeps when I spoke to it, but I can't be sure of these were greeting or not. Eventually, it began to utter LC Notes after being isolated for a least 5 minutes. Then it definitely did utter Peeps as greeting when I spoke.

All their Peeps uttered by U when isolated and as greeting were relatively long notes and relatively "well-spaced", i.e. there were relatively long periods of silence between successive notes.

Then U uttered Peeps when running, both when following me and when running away from me.

The Peeps it uttered when running away from me were apparently identical with the Peeps it had uttered when isolated and as greeting, but the Peeps it uttered when following me were shorter and more rapidly repeated. 

Then U uttered chirps, Peeps, and Trills (their trills were not very different from Peeps) when poked.

Then utters moderately long Peeps, at moderately long intervals, when standing by itself (not in a box). Then, when I approach, it runs away. As soon as it starts to run away, it begins to utter Peeps more rapidly. Their Peep notes were similar to the ones it had been uttering when standing alone, but somewhat louder and much longer. Possibly a distinctive form of "Alarm Peeps"?.