I see horseshoes in both mouths.
Now I look again, I agree. I first thought that the artist had depicted the beak open, but what I thought was the bottom "jaw" is intended to be the horse-shoe.
The origin of the horse-shoe in the beak may well be North African, and I like the notion of ostrich-cavalry which is not beyond the realms of possibility (lads on ostrich-back armed with bows could have been both fast and deadly - certainly disconcerting for anyone who had never seen the like). Ostriches (and lions and elephants) did exist in North Africa in Roman times, but not I think in Romania or Hungary, then or later, so the migration of the myth would have come from North Africa by way of the Turkish Empire to Hungary, which warred with the expansionist Turks for centuries - which (to lead us back to the thread) is how John Smith came to be fighting in Transylvania.