Can anyone advise, I lost a previously healthy 14 month old chicken yesterday. She went down very quickly, I noticed she wasn't eating during the afternoon supper of corn and dried meal woms. She was drinking a lot of water.I checked her crop and it appeared normal, not over hard and not spongy either. The rest of the hens were fine and eating as normal (1 has completed a moult, 1 is mid moult and the other is almost bald!) Yesterday morning when I let them out the 3 "healthy hens" came out as normal whilst the sickly one stayed huddled in the hen house. Her crop seemed full of fluid so I emptied it by holding her upside down till it drained. There was little content apart from greyish fluid. It didn't seem to smell either. I had to go to work so put her back into the house with mash and a dish of water.On my return from work she was barely alive and cold to the touch, I brought her into the house in a straw filled box but she died soon after. This morning when I let the remaining hens out, as usual I give them a few dried meal worms and a small amount of corn, they barely touched the stuff and they normally go crazy for the meal worms? We had snow in the night and they are all sat huddled in the small shelter in their pen and won't eat. They normally come running to the front of the pen when I open the door to go out, they haven't budged an inch. So I've taken raisins and corn and some warm mash out to them. They've only eaten the raisins? I'm really hoping I'm not being paranoid and that it's just the cold weather and lack of feathers that has made them loose their interest in food? Any ideas please would be greatfully accepted on what I can temt them with? This is their first moult in the winter so is it normal to go off food?