Does anyone else have a problem with a broody hen stepping on the young chicks? Is it something that happens occasionally? Or is my broody just especially clumsy?
Yes, it happens...and as Fisherlady said, they sometimes kick them as they teach them to forage and scratch.
The only time it is a problem is if you have a feather footed breed, like a Silkie, and they get caught in the foot feathers...I have had a chick dragged that way...now I always trim my Silkie's foot feathers before she hatches chicks.
Lady of McCamley