she is about 4 years old. no other chickens are sick. i thought she was being deprived of food , as she is at the bottom of the pecking order. we brought her in, and she just stands in the cage, falls over alot, barely eats or drinks. she seems to have watry poo. wings are hanging down, she looks bad, but has been hanging on like this for almost a week. occasionally she looks liek she has perked up, but it doesnt last. she has not layed in all this time either. im thinking we will have to put her down this evening when my DH comes home. any ideas?