Well they probably do eat Kentucky Fried Hens and probably Kentucky Fried Roosters as well! Saying that, there was a story about Kentucky Fried Pigeons, but thats for another day.
A hen is generally a female bird, most commonly used in reference to female chickens, where the male is the rooster. A hen party ... is something else.
spudqueen, I have heard someone cal themself a chicken farmer - does that mean they cultivate hen and rooster meat in a factory or laboratory?