Hi, I am new here and am looking for some help to determine what is wrong with all my chicken's. I started out with 6 that I purchased from a local store and I have had them about a year,I also rescued about eight more from a neighbor who did not want them anymore. All of wich are hen's. About a month ago I started seeing them all one by one act paralyzed and not moving around but they would eat and drink. Thier feet curl up and then a few days pass and they seem to die. I had one rooster in the bunch and he did the same thing but then got better for a day and the next he was dead.....Can someone please give me some advise on what might be the issue with them and what I can do to save the only seven I have left.....Also I'd like to know if it will affect any other animals I have because I have two ducks and two geese as well but they have showed no symptoms of anything. Thank you.