Chicken eggs come in many different shapes and sizes; we look at the reasons why white eggs have come to dominate the ...

Most of the brown eggs in the U.S. are produced by a type of chicken breed called Rhode Island Red or Plymouth Rock, while many of the white eggs are made by White Leghorn chickens, he says ...

For example, Leghorn chickens lay white eggs, Orpington’s lay brown eggs and Ameraucana chickens lay blue eggs. And the “olive egger” breed lays … wait for it … olive-green eggs.

There are technically two kinds of Leghorn chickens: The white chickens used in industrial poultry farming, and a brown species more commonly found on non-commercial farms. White Leghorns were ...