Families in the order BUCEROTIFORMES
IOC note:
Separation of the hoopoes and hornbills as the Order Bucerotiformes maintains monophyly of the Coraciiformes without submerging the Piciformes and Trogoniformes into the Coraciiformes (Hackett et al. 2008).
- Hoopoes (Upupidae)
- Wood Hoopoes (Phoeniculidae)
- Hornbills (Bucerotidae)
- Ground Hornbills (Bucorvidae)
Taxonomic source: IOC World Bird Names
