[Texas Fossil]

Ameraucana chickens do lay green or blue eggs.

Many others lay brown eggs.

Most commercial producers raise chickens who lay white eggs.

The Reason? I don’t know that.

[ROCKLOBSTER]

blue eggs

I know, I get them all the time from the neighbor's chickens.

[VerySadAmerican]

White chickens lay white eggs. Red chickens lay brown eggs. Shell color is the only difference between the two.