Hello to all. I have never owned a chicken and thought this would be fun. Someone gave me 6 two year old sex-link chickens. One was separated because they pecked her. Last week I saw one of the 5 in a corner laying down, her comb was purple and it looked like she was having trouble breathing. I took her out and put her in a separate cage. All was going well, color came back to comb. Then Friday when I got home she was dead. All the others look okay but I know very little about chickens. Anyone have the same problem? Thanks for the help.