Hen died quite suddenly...why??

[FlutterbyChicks]

So I just went out to check on my girls, and my 11 month old Buff Orpington was laying there dead. I was just out there maybe two hours ago, and she, along with my 6 others were all perfectly fine. What could've happened?? There was no blood on her anywhere except a little spot on her comb where I think maybe the others were starting to peck her (or maybe not). No feathers missing. I just don't understand...

 

[ChickenCanoe]

It can happen from so many things.
I was watching a rooster walking around dancing for hens. I turned around and he was dead, just seconds later.
I had a necropsy done at the state vet school.
He had a heart attack.

I recommend you do the same.