So I have read through several threads and I'm still not sure about how old the chicks should be before I move them outside. They are about 9 days old now, and currently living in the house. They are in a storage tub with a heat lamp. I live in upstate new york, right now the highs are in the 60s/70s and lows in the 50s. We are currently building a coop for them but can they just play outside in the sun right now? Thanks in advance.