Mottled / Brown-red / Wheaten
A variant of Japanese Bantam (Gallus gallus domesticus)

Representative Japanese Bantamphoto — a dedicated image of this exact morph isn't available yet.
Patterned color forms: mottled (black with white-tipped 'spangles'), brown-red, and wheaten. Mottling spreads with each molt.
Keeper tips for this variant
Judge mottled birds on adult plumage only — white tipping increases with age, so an over-mottled adult may have looked correct as a youngster; select younger breeders that are slightly under-mottled.