The openbill storks are large wading birds characterized by large bills, the upper and lower bill do not meet except at the tip. This feature develops only in the adults.
Two species of openbill storks have been identified:
- Asian Openbill Stork (A. oscitans): Found in tropical southern Asia from India and Sri Lanka east to Southeast Asia.
- African Openbill Stork (A. lamelligerus,). Found in Africa and Madagascar.