I have 14 chicks ages 12 - 15 weeks. They have been staying outside in their coop for over a month. They have an enclosed run that I close at night. For the past 2 nights, one of the chicks has not been in the coop when I go to close up after dark. In the morning she is parading around just outside the run. I tried to look for her last night, but we have a large yard with lots of places to hide & I couldn't find her in the dark. Any suggestions on what to do? Our neighbors lost their completely free-ranging chickens to coyotes, so I hate to leave her out at night. I also hate to confine her back to the run continuously for a period of time, since I think I might have to leave all of the chickens in the run if I do that (they tend to push past you when you open the gate). The run is 10 x 10, so it's a bit small for 14 chickens to be in full-time.