Thanks Louise.... God I hope it wasn't, and I've culled needlessly.... Both OH and I thought she looked like she was on deaths door and suffering, so I made the call. :-(. No smell, no grunge when I held her upside down. Just clear liquid in her airway. But it could have been, reading threads on this.... They all certainly have access to long grass... Having a good 5 acres to wander around. She was 2 years old, they always have access to grit and oyster shell and cider vinegar in drinking water, and a whole grain diet. I did notice a couple of mites... So will dust all the others tomorrow, and there have been rats in the hen house recently..... (Just discovered and blocked a small hole day before yesterday).