This is a new one for me! I have ten 8-week-old pullets; they've been out in the coop with the oldsters (4 years) for more than a month. None of my other chickens have ever done this, but I just looked out the kitchen window and three of them--barred rock, welsummer and Easter Egger--were chasing the two young bunnies that have been hanging out in my backyard for a few weeks. Chasing hard, like following them into the hedge. Has anyone else had this happen? I'm not freaking out or anything, just found it odd. They're hell on smaller things like snakes and toads and anoles/skinks, but ignore squirrels.