Hi! I'm brand new here and new to chickens! I have (6) varied breed laying hens...around 3 weeks old. Living in CA we have mild weather temps. I'm trying to figure out when to move the girls to our ultra max security run and coop? We are out of town in 3 weeks and was hoping to move them in time for the house sitter to care for them. Suggestions? I think they're going to outgrow their pen.