Well, judging from most of you folk, it is The 4 chicks we have are a little over a week old. We want to get just two more. Do we have to separate them? For how long? Our current chicks are so sweet, two will already walk into my hand when I put it into the brooder. Will the new ones change the dynamic of the others? I want buffs, already have 2 Amer/1 BR/1BA.