These girls are second generation olive eggers which means the eggs are typically darker olive than the first generation olive eggers.  Eggs are lovely and can be speckled!  Hens are all different colors as all Olive Eggers are hybrids.  F2 generation is a cross between two olive eggers, which means a darker color egg, and a significantly reduced chance of a brown egg (less than 5%).  These girls produce copius amounts of eggs, and are heat and cold hardy!