So we purchased a farm last November. The previous owner left behind 35 chip 4 ducks 2 turkeys and 3 peafowl. About 3 days ago I noticed one hen turkey was coming up to me and lying down on the ground. She seemed fine but not as active, she was eating and drinking. I noticed her wings were a bit droopy but not enough to draw my concern. Today my husband said he saw her lying alone in the yard on the snow. I went to visit her and she stayed still I also noticed her head was blue. She wasn't as active either but still eating. I'd say she's just around 10 lbs, so my husband and I went up and gave her some tylan 200 (just under 1 ml). I also gave her some Vetrx in case of respiratory problems (she sounded fine) but she did feel very warm. Is it normal for a hen to turn blue? Did I do the right thing by giving her antibiotics and if so, how many more days should I give her tylan? Should I separate her from the rest of my poultry? Any advice is appreciated.