I have owned many chickens and I looked this website but I couldn't find anything on saying if chickens could eat pine cones and no not pine needles but pine cones. One of my 1yr old hens died without cause she was running around yesterday and this morning but when I came to see her this afternoon she was dead. And i found in the coop a pinecone which i didnt place there.What could be the cause? And any helpful solutions so this does not happen to my other hen.