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14

Darnis  [[?]], Mar. 12, 1961, VI.

the male and female first came together, when they were most active. Such Low St postures may be an indication of high intensity.

Later on, when the birds were less active, and the intensity of the encounter appeared to be declining, the male assumed extreme Low St Postures (more or less like C. on p. 11) relatively more frequently during his Bowing.

The female B did rather less extreme Bowing, and less Bowing in general, throughout this encounter.  I don't know if she ever assumed a very extreme Low St posture during her Bowing at any time. She did, however, frequently assume Weak St Postures during Bowing.

I think that the Bowing of both male and female B was usually accompanied by Song phrases, but I am not quite sure abut this. Certainly some times silent and/or accompanied by CN's instead of Songs.

A lot of the Bowing of both male and female B was also combined with Pivoting. Quite extreme. Quite like the Pivoting of mannibuis [[?]]. It was my impression that the male tended to do a lot of straight up and down Bowing, with little or no Pivoting, during the very first few seconds after encountering the female for the first time. But he began doing a lot of extreme Pivoting very soon afterwards, while the birds were still showing a lot of apparently high intensity behavior.

I think that most of the sideways movement during Pivoting during Bowing was on the downbeat. Or, at least, this is the impression I got.  Is it possible?

I think that the female tended to do rather less, and less extreme, Pivoting than the male on the average.

Both birds did a lot of BW this morning, especially at first when they seemed to be  most excited. It is possible that the down movements