I have 12 chickens that free range. 4 of them are roos. With it being so cold they come out of the coop, run about 50ft to trailer that dh dug out a spot so they can still get under. It is enclosed by snow and they like to hang out on the cold days. They tend to fight in the coop if they stay in. I went to lock up last night and I am missing a 27 wk old silver ameraucana, not laying yet. Searched forever last night, as did dh and then again this morning. Not a trace of her . No feathers, nothing. My dad is saying hawk but I haven't seen any hanging out. I think they will have to fight it out in the coop today because I don't want to lose another, plus it's very cold.... So what do you think, probably hawk?