Where does it come from to wear glasses to a chicken?

(agricultural get Rich Network) where does it come from to wear glasses to chickens? Peck the hair on the back, it bleeds, bleeds, the chicken generally does not know what reason, all like to peck the bleeding chicken, everyone likes to peck. Many people have a misunderstanding: think that cows will be angry when they see red. In fact, cows are color-blind. It doesn't matter what is red or black at all. It just doesn't like fluttering things. It is the chicken that really gets angry when it sees red! This chicken is inherently sensitive to red, so, ah, when they peck at each other's hair, once a chicken is pecked out of blood, other chickens will excitedly attack and frantically peck at the bleeding site. -- usually take the measure of cutting off the beak