Hi all, this is my first winter with turkeys. I have 5 heritage Black Winged Bronze, 2 toms and 3 hens (I think). One hen has been lethargic, droopy eyed, and sleepy for the last few days. The other 4 are active and animated. I'm worried about her. They live in a large 8 x 12 ft. coop with about 20 chickens but it's well ventilated, I give them clean water each day and they congregate up on their own roost every night. On nice days they are let out and run around the yard - though I do live in Vermont so on 0 degree days I keep them in. Any suggestions as to what I can do for this hen? Thanks in advance.