Found down, lump on leg, dead in 24 hours. What happened?

[ChickyMudder]

I love to write articles, but this site requires them to be illustrated with original photos. How do you illustrate something that is invisible?

My flock hasn't experienced a predator attack in years since I have all the local bears terrorized by my hot fence, and I have an arrangement with the ravens and crows to keep the hawks away. I'm also near the top of my learning curve and accidents aren't nearly as likely as they used to be. So finding a model for shock in my flock might not happen for quite a while.

Picture the concoction and a hen laying down?