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3

Aramides cajauea, June 18, 1960, III          
                   
declined in frequency and then stopped, but they tended to recur, later in the day, whenever I made a sudden movement which alarmed one or more birds. (Tonight, for instance, one bird was following me, uttering LC Notes and did so, when it suddenly became frightened of me and ran away. It stopped LC Notes and began AlCN's the minute it started to run away.)

Most AlCN's are accompanied by overt running escape movements. When we recorded one bird this afternoon, however, we provoked it into starting AlCN's by poking it. It then continued AlCN's for quite a while, although it was not making escape movements, or at least, not very rigorous escape movements, all the while. This would suggest that some attack drive is activated in addition to escape when AlCN's are uttered.

Rather as in the case of the LC Notes, it is just barely possible that some AlCN's are relatively "generalized." When we recorded an isolated bird this afternoon (without poking it), it uttered lots of LC Notes. After a while, after its LC's had increased in intensity, it also uttered brief bursts of 1,2, or 3 AlCN's, from time to time, in between LC's. But these AlCN's may well have been purely hostile.

(If both some of the LC Notes and some of the AlCN's should be proved to be generalized distress reactions - which I very greatly doubt then the AlCN's are probably higher intensity than the LC Notes.) 

 The P patterns are much less conspicuous than either LC Notes or AlCN's. Soft, rather melodious and/or plaintive notes sounding very much like soft abbreviated LC Notes (i.e. LC Notes of the same length as the AlCN's). Usually or always uttered in series of indeterminate length. Some P was probably uttered by the birds this morning, but I did not become really aware of  its existence until around mid-day. It seems to be uttered, at least