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Aramides cajauea, June 17, 1960, II         
                  

A single LC Note might be transcribed by something like "Keeeeeee - eeeee- yoooo".

It is the LC which I termed "long notes" when we recorded the birds this afternoon.

Most LC notes are uttered in quite distinctive circumstances. When a bird is completely isolated. Become louder and more rapidly repeated (up to a certain limit) the longer the bird is isolated.

At least once, an isolated bird which had not yet begun to utter LC's did begin to do so when it heard my voice. Apparently in response this occurred this evening, after the birds had begun to be fixated on me.

It is just barely possible that the LC is something more, or more generalized, than a simple [[?]] call.  Sometimes, although relatively rarely, uttered by a bird standing or sitting very close to its siblings. But such notes may be due to the fact that the bird is separated from its parents. It is also noticeable that such notes tend to be given by a bird which is wide awake while all its siblings are asleep. It is possible that the sleeping siblings are not recognizable as such to the calling bird.

It seem highly probable, therefore, that all the LC's are provoked by some frustration of some "gregarious motivation."

Aside from these occasional LC's, the birds are usually silent when they are near one another in their cage.

Typical AlCN's are quite different from the LC notes. Much sharper and shorter. Often uttered in very rapid series of many notes - like some rather loud and sharp twittering.

These are the notes which I termed "short notes" when we recorded the birds today.

When we first picked up the birds this morning, they uttered lots & lots of AlCN's as we carried them up to the animal  house. These notes gradually