my aunt called me no to long ago telling me that her rooster has stopped singing. this is one of the "symptoms" that has accompanied what she says is a sort of depression her rooster has. The rest of her flock is all well, he has no injuries she has seen, he walks around but kind of sad-like. any ideas what it might be and how to fix it. this has been going on for a bit over a week so she is a little worried. the rooster is a 1 year old white leghorn. thank you.