Ok so when I'm at the chicken coop, I sometimes hear sneezing but I don't know which chicken is doing it. They all seem healthy and happy but this evening I went to check and make sure they were all on the roost and one of them caught my attention. Her eyes almost seem droopy and real whitish around her eyes. I also noticed that under her eyes there isn't many feathers like the others have and on the little area with no feathers, there is a little black mark that almost looks like mucus but I don't know what it is. Could this be linked with the sneezing and what can I do to fix this??