I have a hen who I've noticed looks like she has a possible swollen upper eyelid on both eyes. I'll be honest I haven't noticed it before but don't know if I just haven't noticed it or if it's new. She's eating, laying, and drinking fine. She doesn't act differently at all I've been letting them free range lately but other then that no change in routine. No other chickens have it and other then the eye lids I haven't noticed anything odd. It doesn't seem to bug her if I touch them but just wanted to ask around. Both eyes look the same neither is more or less swollen from what I can tell. I've noticed it for about 2 weeks without any increase in size