Hey y'all, I had a tragic weekend where both my hens died unexpectedly and without symptoms. My brother let them out of the coop in the morning and they were fine. Pecking at the worms he brought them and by the time he got home from work they were both dead. Nothing physically wrong with them. One was in her nesting box and the other in her dust bath. What happened? I'm at a loss. It's been hot here but they get fresh water everyday with icecubes. I even put some frozen gallons on water in the coop and run for then to lean against. Their sister was killed by a raccoon about weeks ago, I don't know if that's relevant. Thanks. I'm just devastated over here.