A local farmers market in Annandale, Virginia, sells natural chicken eggs. Different chickens lay eggs of different colors solely because of their genetic makeup. PAUL J. RICHARDS/AFP/Getty Images ...

Chickens like the Rhode Island Red and Plymouth Rock are famed for their brown eggs. The depth of brown coloring can vary from light to dark chocolate, attributed to the pigment protoporphyrin ...

Plymouth Rock. As the name hints, this is one of America’s oldest breeds with black and white plumage. ... However, the color ...

White leghorn chickens lay white-shelled eggs, and breeds like Plymouth Rocks and Rhode Island Reds lay brown-shelled eggs. The shells are brown because a pigment called protoporphyrin is ...

This article explains what causes the color of an egg, how this impacts the ... White Rock, and Cornish lay white eggs. Rhode Island Red, New Hampshire, and Plymouth Rock chickens lay brown eggs.

The Barred Plymouth Rock chicken is a dual-purpose breed which was a boon to the meat and egg industries during World War II. This dual-purpose breed can lay eggs year round and has also been used ...

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 ...

Plymouth Rock chickens are not known to go broody. During World War II these chickens were a vital source of eggs for all Americans. Plymouth rock comes in a variety of colors including blue, buff ...

Barred Plymouth Rock Chickens The Barred Plymouth Rock chicken is a year-round egg layer as well as a good meat bird. Both cocks and hens have an upright carriage and are graceful, stylish birds.

Peruse the egg section of a grocery store or farmers market, and you'll notice cartons of eggs separated into white and brown, sometimes even green or blue eggs. But once they arrive scrambled on a ...