It was 2F this morning. At 8am, later than usual, I brought out some house temperature (65F) fermented feed to them and they started going to town on it like they usually so. I also unblocked their dry feed. I came back 30 minutes later and noticed they had barely touched their FF nor dry feed. 60 minutes later, same thing. They were just sitting there, feathers fluffed out to keep warm and several were huddled in a corner of the run, only a couple feet away from their food. I ran some errands and came back 2 hours later and noticed they'd eaten all the FF and were now working on some dry feed. So strange! They usually eat their fill of FF within 30 minutes or so. The only thing I can think of was it was bitter cold, it hasn't been this cold since early November. They have plenty of ice free water. Perhaps they filled up on water just before I brought out their food, I dunno. Can a cold snap like that discourage them from eating?