Greenthum89,
KLF73 is correct. Any chicken that lays a green egg has some other breed that lays brown eggs mixed in it's genetic background. Brown egg genes mixed with blue egg genes = green eggs. Some Ameraucanas and Araucanas may have a green tint to them but reputable breeders don't hatch those eggs and only select the blue eggs to hatch in order to eliminate the greenish eggs.
KLF73 is correct. Any chicken that lays a green egg has some other breed that lays brown eggs mixed in it's genetic background. Brown egg genes mixed with blue egg genes = green eggs. Some Ameraucanas and Araucanas may have a green tint to them but reputable breeders don't hatch those eggs and only select the blue eggs to hatch in order to eliminate the greenish eggs.