I took in a stray rooster almost a week ago to add to my 4 hens (all almost one year old). Yesterday I noticed my favorite girl (an easter egger) had a runny eye - by night time it was white and foamy. Today no discharge, but she's clearly sick. No interest in food, can barely keep her eyes open, sometimes I hear rattled breathing. I'm assuming it's coryza from what I'm reading online, though there's no foul smell. Please, any advice would be appreciated!! Except culling - not an option. These are loved pets.