I have eight 7 week old chicks that are outside in a coop and have been weaned from the heat lamp. I have a nightlight that's on at night and their coop is open to a chainlink and chicken wire run that is completely covered. I'm struggling with leaving the door open at night or keeping it closed. So far I go out every night before it gets dark and close it and then open once I get up and around in the morning. They come running out first thing and I'm sure they've been up and around for a good hour or two already. Do you think it would be okay to leave the door from the coop to the run open all night? We are out in the country and I'm nervous that the small amount of light might attract critters..... Thanks!!!