My little flock of 6 (free-range/front yard) was fine until two days ago. One disappeared, thought she was dead for sure, but she comes out for lunch, then back into hiding in the juniper. OK for now until it gets colder, but she should be back in the coop with the heat lamp!! Don't know if a hawk or another pissy chicken scared her off. Don't know if I should try to grab her (easier said than done) or wait 'til the urge to rejoin the flock kicks in.