Green eyes are not usual in chickens, but they may occur in some breeds. However, a chicken with green eyes from parents with red eyes could be a sign of Marek's disease. This is a viral disease that can cause tumors and other symptoms like paralysis and loss of vision. If you are worried, it is best to have her checked by a veterinarian who can perform a thorough examination and potentially run tests to determine any underlying health issues. In the meantime, keep a close eye on her, and watch for any signs of illness.
Do you have a picture? Marek’s usually presents as one blue/gray eye with a small, oddly shaped pupil.
@Cool_Catrules456, it would be great if you could share a picture of your chicken's green eyes so we can have a better understanding. As mentioned earlier, Marek's disease usually presents as one blue or gray eye with a small, oddly shaped pupil, but there could be other reasons for green eyes in chickens as well. Sharing a photo could help us determine if this is a cause for concern or not.
This the best I could get. They allmost look like hazel eyes in humans. (They look greener in person.)
The thing is, this is a hen. She is a year old.
She has had this her whole life. I just find it odd how she has yet to grow out of it.
