I have not smelled it, but will today. With the sneezing I thought drainage from her nares, but I'm not seeing that. They do not have an oily sheen or apperance on them. Yes, I have dogs, but the hens are protected by fencing (and I mean 8ft high fencing), and the dogs are NEVER outside when we are not at home. I've lost a few hens to raccoons and owls, and have since taken measures to protect them as much as I can. They free range in a completely fenced area during the day, are let out of their coop by an electronic door once it's light outside, and I gather them up and place them in their coop before full darkness. I will look closely for an injury today, but the feathers don't seem disturbed, just wet. I will also post a photo today once it's light outside. None of the other hens seem affected, but if it's something that can affect them, I'd rather prevent it before it starts...