I have 6 new babies. I have 7 laying ladies already, one to be culled soon as i can muster the courage. I am nervouse about eating my own meat, (silly i know) Anyway 1 is 4weeks ish 3 are 3wks ish and 2 are poof balls still. When do i start putting them outside. I am in the PNW and the nights here have been about....35-40 deg. f. I realize they will still need a heat lamp but how soon should i put them out? I wnat to put all 6 into the new flock at once.