My 13 yo son loves trivia games and downloaded a trivia app for his ipod. It has about ten thousand useless facts. He showed me fact # 1032 (among many others ) and it stated that by "feeding certain dyes to chickens, you could color the yolks of their eggs. " I thought this sounded like total hogwash and said so...he wants me to ask the "chicken people". So, anybody think this is possible? I don't.