Parent: Tachybaptus (Least grebes)

└─ Tachybaptus dominicus (Least grebe)

└─── Tachybaptus dominicus bangsi (Least grebe)

└─── Tachybaptus dominicus brachypterus

└─── Tachybaptus dominicus brachyrhynchus

└─── Tachybaptus dominicus dominicus

└─── Tachybaptus dominicus eisenmanni