Generally laid by white birds with white earlobes Common U.S. breed is White Leghorn chickens “For chickens that lay brown eggs, a pigment protein called protoporphyrin is added as the eggshell ...

including a plaque rewarding the best White Leghorn chickens at the Northamptonshire Egg Laying Trials. Also on display: a collection of Monopoly boards, including an early 1920 version called ...