Congratulations on the clean bill of health on your visiting bat, Ron.
I'm a bit down tonight. Came home to find my prized Lavender O rooster on his back in the coop, quite dead. No symptoms to lead me to believe he was on death's doorstep other than a bad case of molt. I suspect a sudden death heart attack or heart failure. I was able to hatch one chick that was him in June. She is a doll. I hope it wasn't anything genetic. He was only 14 months old.
Sorry for your loss, I know it is hard when it is not expected. I lost a 21 month old hen in March 2014 and one at the same age as yours a couple of months ago.
I did an autopsy on the second one. Diagnosed by @Beekissed as fatty liver disease based on the pictures. What I thought was her liver was a massive blood clot
