American Bittern, Botaurus lentiginosus (Add)Gen. Dupetor (Add)
Botaurus pinnatus (Add)Botaurus pinnatus caribaeus (Add)Botaurus poiciloptilus (Add)
Botaurus pinnatus pinnatus (Add)
Eurasian Bittern, Botaurus stellaris (Add)Botaurus stellaris capensis (Add)
Botaurus stellaris stellaris (Add)
Black Bittern, Dupetor flavicollis (Add)Gen. Ixobrychus (Add)Dupetor flavicollis australis (Add)
Dupetor flavicollis flavicollis (Add)
Dupetor flavicollis gouldi (Add)
Dupetor flavicollis woodfordi (Add)
Cinnamon Bittern, Ixobrychus cinnamomeus (Add)
Von Schrenck's Bittern, Ixobrychus eurhythmus (Add)
Least Bittern, Ixobrychus exilis (Add)Ixobrychus exilis bogotensis (Add)Ixobrychus involucris (Add)
Ixobrychus exilis erythromelas (Add)
Ixobrychus exilis exilis (Add)
Ixobrychus exilis limoncochae (Add)
Ixobrychus exilis peruvianus (Add)
Ixobrychus exilis pullus (Add)
Little Bittern, Ixobrychus minutus (Add)Ixobrychus minutus minutus (Add)Ixobrychus novaezelandiae (Add)
Ixobrychus minutus payesii (Add)
Ixobrychus minutus podiceps (Add)Ixobrychus novaezelandiae dubius (Add)Yellow Bittern, Ixobrychus sinensis (Add)
Ixobrychus novaezelandiae novaezelandiae (Add)
Dwarf Bittern, Ixobrychus sturmii (Add)