I've been raising chickens for several years now but still have questions concerning their health. I have two hens with drooping tails and messy vent feathers indicating diarrhea. I've lost 2 hens, one week apart recently. Their behavior seemed perfectly normal, healthy weight, layed eggs the day they passed, eating and drinking as usual. I found them still warm with no indications of injury. I did note that they both had messy vent feathers and wondered if that may have indicated a cause. Would anyone have any feed back for me as to what they are lacking? Or what the illness could be? They are given a small amount of scratch daily as a treat, along with black soldier fly larvae (freeze dried) and table and garden greens, never onions. They have two large cans of 18% protein layer krumbles, one inside their run and one outside in their enclosure. I have two 5 gallon water cans that are rinsed and filled every other day. I can't figure out what if anything they are missing. Helpful advise or comment appreciated