Hey there I have a 10 week old pullet black maran. Her only symptoms are her eyes are sunken in and she's very lazy (always sleeping in a corner) she is also smaller the her siblings. This has been going on with her since she was about 5 weeks of age. None of the other birds are affected. Suggestions? The pic is her.. her eyes are very sunken in and has been since about 5 weeks old. There is no discharge from eyes , nose, or mouth. She eats and drinks.