A week ago, I purchases 6 5-wk old hens who are all happy and doing great. Yesterday, I bought a year old lavender silkie from a woman with lots of birds. She said she was selling it b/c she liked the big birds better. I asked her is the bird was ok-wasn't sick and was ok to put in with my other chickens, and she said yes the bird was well. Anyway, she was dirty, so I brought her home and gave her a bath, dried her off, and immediately took her down and put her in the run with all my other chickens. She immediately pooped. A few minutes later, we decided to take her back inside to sleep in a dog crate with pine shavings, food, water, because I didn't feel good about leaving her alone there and it was almost getting dark. Last night, when I checked on her, she was making a rattling noise when she was breathing. I assumed I maybe got some water in her nose? SHe has made the noise off and on today, but seems alert.I still have her in the dog crate . I realized later that I should have quarantined her-if I had remembered, I wouldn't have bought her. I have 4 yr. old twins and 2 (old) Jack Russell Terrriers in my house and would not have taken that on. My question is, since she went in the run with my other chickens and pooped, if she has a disease, has it already spread to them? Is there any time when chickens breathe with a rattle and it's normal. I'm assuming she was under lots of stress last night with the move and bath. HELP!