Over the past month or so I've lost several of my birds. They do free-range and it did not seem that their illness was related- just something that happens occasionally. However, I have an older pair of bantams- I got them as adults so I have no idea how old they actually are. When I fed yesterday morning- everyone was fine. When I went in last evening after work Grace, the little hen, was laying on the floor with her neck twisted toward her back. NO other signs of distress- her eyes are bright, she's eating and I help her drink on a regular basis. I moved her to a separate cage with a heat lamp- and gave her PetRX. For awhile she was more active and untwisted her neck to eat and drink. She's still hanging in there . I also have a 6 month old Ameracauna who's become listless and fluffed- I dosed her with PetRX as well. And this morning a four week old chick in a closed brooder box in the same chicken house died. I took EVERYTHING out of the house today- cleaned, swept, and used bleach to clean every corner, perch and dish. I've read all the articles on the various diseases in my chicken health book- and on here, but there is no discharge, swelling or any VISIBLE signs on these birds, but I"m worried. Don't know if these symptoms are related or not. There was one other young hen two weeks ago who went listless one day- and then just died. Again, nothing visible other than that. If ANYONE has any ideas here, I'd greatly appreciate your help. Thanks.