White / Black / Blue / Grey
A variant of Japanese Bantam (Gallus gallus domesticus)

Representative Japanese Bantamphoto — a dedicated image of this exact morph isn't available yet.
The standard self colors of the breed. Blue is the unstable blue-dilution form, throwing black, blue, and splash from a single pairing.
Keeper tips for this variant
Breeding two Blues gives only ~50% blue plus black and splash — pair Blue × Black or Blue × Splash for the best yield of show-quality blue self birds.