Parent: Pachycephala

└─ Pachycephala simplex (Grey whistler)

└─── Pachycephala simplex brunnescens

└─── Pachycephala simplex gagiensis

└─── Pachycephala simplex griseiceps

└─── Pachycephala simplex jobiensis

└─── Pachycephala simplex miosnomensis

└─── Pachycephala simplex peninsulae

└─── Pachycephala simplex perneglecta

└─── Pachycephala simplex rufipennis

└─── Pachycephala simplex simplex

└─── Pachycephala simplex sudestensis

└─── Pachycephala simplex waigeuensis