This barred rock is 5.5 years old and suddenly has one eye swollen shut. She has been broody and otherwise behaves normally. I don't see any discharge or evidence of eye worms. We get about 5 new hens every year and she is in the oldest age cohort. An Iowa blue of the same age is broody now too and she is not normally aggressive; I do find them in the same nest box sometimes. Could this be eye pecking (Iowa blue or younger hens)? Something infectious? Thanks for any advice!
