I have a 16 month old chicken that has had a thin, milky white discharge coming from her vent for some time. She looks and acts completely normal. I don't know if she is laying. I've gone through literally dozens of websites and searches looking for the symptoms of any condition that are even vaguely similar with no luck. I bathed her today and got a good look at the discharge. It looks like milk dripping down her back end. Any ideas? I was wondering if she could simply be incontinent (Does that happen to chickens???).