Hello, I have 2 broodies right now. The first one started and it seems to be contagious. I want to put some chicks under them, what is the minimum amount of time they can sit and accept chicks? I don't want to rush them but they are taking up two of my 3 boxes. I have tried moving them, short of putting them in a different pen they go right back to the nest they were on. I have done it at night, i have put fake eggs under them..... I dont want to break them but do i need to wait the full 21 days? Will they accept them after a week? two weeks? Also the nests they are in are about 16inches maybe a little less up the wall. If they wont let me move them how will the chicks get down will i have to build a ramp?