After Leghorn chickens became popular, Polish chickens were favored as show chickens. Their unusual characteristics make them ideal for exhibition. Polish chickens have a magnificent feathered ...

Some breeds such as White Leghorn chickens lay eggs with white shells while other breeds such as Rhode Island Reds lay eggs with brown ... “It has a lot to do with the chicken feed,” Brey said.

A chicken yolk, or ovum, forms in the hen’s ovaries. ... White leghorn chickens lay white-shelled eggs, and breeds like Plymouth Rocks and Rhode Island Reds lay brown-shelled eggs.

Leghorn chickens lay white eggs. California White chickens are also a popular breed for egg production, Beyer said. They lay white eggs and do well in the cold weather.