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Re: Science feather strength debate

> Regarding life in trees, how good a glider can *Archaeopteryx* have
> been when it had that gap between wing and body, and don't
> chachalacas have a fully reverted hallux while that of
> *Confuciusornis* points medially and that of *Archaeopteryx* isn't
> rotated at all?

 Oho! So now the poor thing cannot even glide?

I don't know, I haven't done the math.