Hunting with birds of prey in the Roman period

[Wander]

Either way, I'd read that as saying it would be quite a novelty to a Roman, else Pliny would not have described it that way.

I have to admit I have a little trouble imagining an untrained hawk sharing its prey with humans, so I would lean toward seeing them as trained. This might not be to the "bird-on-your-wrist" level, though.