today i noticed one of my hens sort of just standing in one spot while the others scratched and moved around. she sort of had her feathers ruffled up and her chin tucked in like she does when she sleeps except she was just standing there. when i got in ther with her she did snap out of it and start acting normal, but when i would leave i looked and she started again. it was a little cool today but it has been colder and they all have been fine. am i just worrying over nothing or does this sound funny to anyone else.?