Three of my four chickens mysteriously died about ten days ago. I had three roosters and one hen. All that remains is my large white roo. I have a feeling he may have killed the others. Alternatively, could they have died from eating the pumpkin I gave them? Either way, it's been about ten days, and I'd like to cull the remaining roo. He appears to be in good health and active. Would he be safe to eat?