My one and only chicken has had an eye problem since it was born. The first few days after it was born it had gross grey stuff forming over its eye. It ended up completely covering its eye. Eventually the grey stuff faded away but the eye was very wet and sticky which caused the fur around the eye to stick to it. I had to cut off a lot of fur around the eye. The chook is 2 months old now and still has the eye problem. It's not as bad as it was but the eye is preducing a lot of liquid. My chook is shaking its head a lot and splashing the liquid in its eye everywhere. There is also bits of grey mushy stuff around its eye. Apart from the eye problem, it seems healthy. Edit: Added pictures. The first picture is the good eye and the second is the bad one. It has a few sores around its eye. You can't really see in the picture but there is a bit of liquid just below its eye towards its mouth. Also, the fur isn't growing back around its eye.