I know she has to sit for 3 nights straight before she it truly broody but after that I don't know how soon you can put chicks under her. My BO is broody for the first time and I put 3 eggs under her from my Apr 13 batch I don't know how many she is sitting on, I don't want to disturb her. This is worst then hatching eggs in an incubator. Check the forum I am sure their is something on there about this.Ok but serious question. One of the sebrights just (like just today) went broody. How long does see need to sit before I can give her a live chick? I'm just thinking the eggs I checked today are not fertile and though i have a few in the fridge im not holding much hour for more sebright chicks. So I was thinking if I could give her the sebriggt that did hatch? And maybe a standard to pair for a little while. I know 1 day broody is really early but i don't want her broody long as she has to be ready for show in July. And i don't want to wait to long if I can give her this baby instead