While they became famous for their dark brown eggs in the first half of the 20th century , many flocks now lay eggs of a much lighter brown than before and are sometimes not quite as productive as the breed has been historically .
While they became famous for their dark brown eggs in the first half of the 20th century , most birds are now bred by show breeders . 
 Many flocks now lay eggs of a much lighter brown than before and are sometimes not quite as productive as the breed has been historically .