I have 3 blue slate poults that are either 3 or 4 weeks old. I know they are too young to go out right now, but I"m sure it won't be long before they need to get the boot
So how old do they need to be before I can move them outside? What kind of pen do they need to be in?

So how old do they need to be before I can move them outside? What kind of pen do they need to be in?