I had a hen hatch chicks on June 19th so that's a little less than 4 weeks ago and she is already pecking her chicks and she payed an egg yesterday I have not heard her make a broody cluck all day and yesterday she made very few clucks. Why would she wean her chicks so early? They seem too young to be on their own. I once had a hen who had chicks and then she was attacked by a rooster and forcefully mounted and shortly after that she weaned her chicks after that I think that may have been the reason in that situation but i have no idea on this one we don't have a rooster right now.