So I had my chickens in the garage for the hurricane with a tarp under. When hosing off the tarp poo, I saw this thing?? Eww? Ack?? What is this?? A parasite? Crazy worm? It is pink and stringy like intestinal lining but looks like it has some weird head on it! It's about 5 inches long.
It looks to me like it could be a large roundworm, but the "head" part is unusual. Per this article, they can grow to four and a half inches long: http://articles.extension.org/pages/66279/internal-parasites-of-poultry. Have you seen any others? If it's roundworm, you will probably see more.