Parent: Ardeidae (Bitterns)

└─ Ardeola

└─── Ardeola bacchus (Chinese pond heron)

└─── Ardeola grayii (Indian pond heron)

└─── Ardeola idae (Malagasy pond heron)

└─── Ardeola ralloides (Squacco heron)

└─── Ardeola rufiventris (Rufous-bellied heron)

└─── Ardeola speciosa (Javan pond heron)