Parent: Ardeidae (Bitterns)

└─ Ardea (Great herons)

└─── Ardea alba (Great egret)

└─── Ardea cinerea (Grey heron)

└─── Ardea cocoi (Cocoi heron)

└─── Ardea goliath (Goliath heron)

└─── Ardea herodias (Great blue heron)

└─── Ardea humbloti (Humblot's heron)

└─── Ardea insignis (White-bellied heron)

└─── Ardea melanocephala (Black-headed heron)

└─── Ardea modesta

└─── Ardea pacifica (White-necked heron)

└─── Ardea purpurea (Purple heron)

└─── Ardea sumatrana (Great-billed heron)