Parent: Regulidae (Kinglets)

└─ Regulus (Kinglets)

└─── Regulus calendula (Ruby-crowned kinglet)

└─── Regulus goodfellowi (Flamecrest)

└─── Regulus ignicapilla

└─── Regulus madeirensis (Madeira firecrest)

└─── Regulus regulus (Goldcrest)

└─── Regulus satrapa (Golden-crowned kinglet)