Hello, My one ISA Brown and Rhode Island Red chickens have recently picked up a sickness that has made them droopy and tired. I brought them inside, cause it was really cold outside. My mom's friend said that she feeds her sick chickens yogurt, so I fed the two hens a whole container of raspberry yogurt. After about 12 or more hours, I tried giving them some water. I gave them a bowl of water, and the Rhode Island Red hen started to drink like crazy, but the other wasn't interested. At 4:30, I brought them back outside in the coop. My dad turned our heat lamp on, and I put the hens in the light. I also put the chicken's feeder in front of the hens, and the waterer in the middle. They wont get up, they sort of struggle to move, and one of the hens has curled toes. I don't know if this is a disease, or a sickness .. Or what. They are younger (1 year) laying hens, so I didn't expect anything to happen to them now. Can you think of a cure? Or what this is? Thanks!