My broody hen hatched out two chicks last week. She has since abandoned the remaining eggs. The eggs had nothing going on in them except one. This one still has a moving chick in it. I now have it in my incubator and although it is a week late, I can see it moving when I candle it. Is there any possibility that the chick is viable? Is there such thing a a delay in formation to the extent that it started a week after the other chicks began formation? (There is no way that eggs were added late as the broody hen is housed separately from the general population. Please help!