I lured out the Cluckatrice on accident once. Then it raped me. I escaped, but barely. Here's what I did. You know the little area that's like a big circle, where all the chirping comes from? You'll have to go back and do this without a guest. Make sure Fran is THE only active party member, run through the little nest area in circles, kill the monsters, circle a little more, and then zone out to the left. Pull your active party members back out, zone back through, and you'll see one of the chicks rolling toward you. Two seconds later, mom will be there to rip you to pieces.

I did this when I was level 11 and got ganked. They're all immune to Libra, so I'm not sure what level they're at, but I'm sure 15-20 is good enough to avoid certain death. As long as you've got a decent amount of HP, you should be fine.