The chickens are 1 year old. They were healthy and active. I came out to check eggs in the a.m. and found 1 lying in her nesting box. She had laid the egg, but fell over dead. No mites, no feather loss.
The second chicken was found a few hours ago. She was in the coop, face down (same position). She was very active yesterday, no symptoms. Her body was not harmed, not egg bound at all.
They did get into lawn fertilizer, but I called the medical hot line and they said, in birds the fertilizer would cause diarrhea, but not death. I did not see any diarrhea.
Thank you for your help, I am completely stumped!