Red-backed Mannikin Spermestes nigriceps (including woltersi) is lumped with Black-and-white Mannikin S. bicolor. Earlier claims of parapatric distribution (Sibley & Monroe 1970) is disputed (Dowsett & Dowsett‐Lemaire 1993) and back color varies clinally from west to east (del Hoyo & Collar 2016; HBW/BirdLife).