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[[circled]] 55 [[/circled]]
[[underlined]] Aletes [[/underlined]] ssp, Nov. 1, 1960 IV 

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Later on, D also uttered scream - O calls when violated. (By this time, I was carrying C, and it was quite quiet).
These WW, "determinate" scream, and O calls would certainly appear to have been caused by some sort of frustrated gregariousness. They appeared to be essentially "lost calls".
The reactions of these animals when they heard the various calls uttered during the experiments tonight were interesting. When one of the animals heard the other utter the apparently hostile "indeterminate" screams, it usually retreated to a far corner and Hdd'd silently But the 2 animals tended to answer one another when they uttered WW's and/or "determinate" screams. One animal would utter 1 note, then the other animal would utter 1 note, then the first animal would utter 1 note again, then the second animal would utter 1 note again, etc. etc. etc. The type of notes uttered were not strictly correlated, however. Sometimes an animal would answer a scream by a WW, and sometimes the reverse.
The animals also showed a definite tendency to try to approach one another during their WW - "determinate" scream performances. Once one of them managed to crawl half way under the wall separating them. The other immediately rushed over to try to join it. Both animals had been uttering "determinate" screams when they were far apart, but switched to pure Squ and WW's, without screams, when they got closer together. I.E. the WW's are lower intensity than the screams.
(I might add that I am sure that I have heard other young Reds utter fluctuating WW's before, but I overlooked them because I did not realize that they were really distinct patterns.)
I am sure that the dichotomy between apparently hostile squ - [[indutenit?]]  [[Till?]] - "indeterminate" scream performances and "lost call" squ - WW - "determinate" scream performances is characteristic of all young

Transcription Notes:
Hdd is this journals shorthand for huddled