What's the difference between a white egg and a brown egg?
Also asked, are brown eggs better than white eggs?
The color of an egg is not an indicator of quality. When it comes to taste and nutrition, there is no difference between white and brown eggs. Despite the fact that they're often more expensive, brown eggs aren't any better for you than white eggs, and vice versa.
Then, why are white eggs cheaper than brown eggs?
You would be correct to assume that there are more white eggs in the market than brown ones but that's because breeding and raising white-feathered chickens is much cheaper. Since they aren't fed as much as their brown counterparts. These brown feathered chickens eat more and hence are expensive to keep.
The main reason real organic eggs are brown is that most the heirloom chicken breeds that forage well lay brown eggs. Most likely they are raised just like the other eggs, but with a small porch and a door flap the chickens never use and might not even know exists at all; and organic certified feed.