Re: Bird flight once more

["David Marjanovic" <david.marjanovic@gmx.at>]

I just wrote:

> > And how does, e.g., a stiffened tail help the animal with brooding
> feathers
> > on its forelimbs?
>
> Not at all, of course. This is certainly for balancing as proposed long
ago.

Just to be clear: for balancing in ground runners as proposed for
*Deinonychus* in 1969, not for balancing in trees, where a _prehensile_ tail
(seen in drepanosaurids and various living squamates, not to speak of many
monkeys etc.) is much more useful.