How are chickens killed for use as food on a farm?

Killing Chickens for Food on a Farm

I believe they are beheaded.

Good Q. There are many different ways on killing chickens and these methods differ from different contries, yes some chickens are beheaded but another way of killing them is by hanging them up upside and imersing their head in water then electricuted and boiled in water to get rid of feathers.