My runt Silkie Ming-Ming (the first to lay and the most regular until a week or so ago) has gone broody (I think!?!). She just sits in the nesting box. My other two girls have started laying in other spots around the coup. I have been using an old milk crate (with solid sides) as a nesting box. It has gotten so bad that I can pick up the box, move it, feel under her or pick her up, and as soon as I put her down right back in she goes! The roos can't even make her budge. They are all about 6 months old, it has been pretty cold (teens and twenties alternating with fifties). What do I do??? She's not sitting on anything. Help!?!?