We're in a similar quandry. Saturday we found a dead hen in the bottom of the hen house. Looked like she just went in and went to sleep. It was crazy hot that day. I assumed it was the heat but now yesterday we went in to find 3 dead hens in the hen house, all side by side. One seemed to have fluid coming from her head (beak / mouth). It wasn't the ridiculous heat that we've had so I'm wondering.... disease??? Poison???? (they do free range about 9 hours a day). The kids are scared to go check now for fear the rest will die soon. I have no idea where to start with this but I'm not thinking it's heat anymore. Anyone????????????????