τραχὺς ἐντεῦθεν μελάμπυγός τε τοῖς ἐχθροῖς ἅπασιν → he is a tough black-arse towards his enemies, he is a veritable Heracles towards his enemies
Use P. and V. ὄρνιθες, οἱ or αἱ, Ar. and P. ὄρνεα, τά.