The pulley is 12 weeks or so old, last week she made an odd quick sound every once in a while, only one so I don't think it's a cough. Otherwise she likes to lay in the sun, low energy, decreased appetite and water, no interest in treats. Droopy tail, fluffed up even in the sun. Saw her poop, it was a little watery and small, but formed. Other chickens not infected.