Viewing page 632 of 751

This transcription has been completed. Contact us with corrections.

46

Aramides cajauea, July 30, 1960, VIII  

I did not pay much attention to the behavior of WB immediately after hatching, but I did observe the behavior of WH2 after hatching in considerable detail.

It continued to utter notes as before hatching for about an hour after it got out of the egg, (until it was beginning to dry out appreciably). Still largely undifferentiated P's, with an occasional chirp-like P. The indistinctive P's might be transcribed by something like "Wheeoo" or "Wheep". Apparently still purely generalized (?) reaction. A single "Wheeoo" sometimes uttered when the bid seemed to be uncomfortable in the incubation box. P's became more frequent when the chick was handled. When the chick was handled roughly, and uttered several P's one right after the other, the P's were usually "Wheep"s not "Wheeoo"s. This would suggest that the "Wheep"s were either higher intensity and/or more hostile than the "Wheeoo"s.

Once, when I handled the chick about a half hour after hatching it uttered a "cheep cheep cheep." There notes were quite chirp-like. 

The series "Wheeoo-Wheep--Cheep" may be a continuum at this stage.

By the time the bird was becoming noticeably drier, about an hour after hatching, some of the P notes it uttered when undisturbed in the box were becoming noticeably longer & more plaintive. So much so that they seemed to be real LC notes (even longer than PP's. At first they were quite soft, but they rapidly became louder. By 11:30 a.m. this WH2 bird was uttering quite typical, relatively loud, LC notes.

After lunch, we took WH2 out of the incubation box, and put it into a larger box. It immediately began to move around, on its tarsi. This was accompanied by a lot of LC notes, and also a lot of single chirp