I'm not sure which is more agonizingly tedious: taming a decently leveled murder chicken, or hatching and raising one. Ultimately you waste less of your time by taming a wild high level, but if you're still looking to breed a mega murder chicken prepare for days worth of regret. The babies are about the ugliest thing I've seen, and it takes like 11 hours to reach juvenile.
This is the fear turkey. The fear turkey does not give a fuck. Stay out of the fear turkey's way and you will not have to learn why it is called the fear turkey. It will kill you. That's why they call it the fear turkey.