I have read many people say chicks can transition outside anytime between 4-7 weeks. I live in a warm climate (Louisiana) that is upper 80's during the day and never lower than 70 at night (usually 74 or 75). When can I introduce them to sleeping in their coop? Can I do it earlier based upon the weather. We have a Eglu Coop so I feel really good about it being secure from predators. I am terrified of having a heat lamp in my house with kids and a dog.