Asian openbill

large wading bird in the stork family Ciconiidae

The Asian openbill or Asian openbill stork (Anastomus oscitans) is a large bird in the stork family Ciconiidae. This stork lives in the Indian subcontinent and Southeast Asia.

Asian openbill
Asian Open Bill - tarun.JPG
Adult showing characteristic gap between mandibles
Scientific classification e
Kingdom: Animalia
Phylum: Chordata
Class: Aves
Order: Ciconiiformes
Family: Ciconiidae
Genus: Anastomus
A. oscitans
Binomial name
Anastomus oscitans
(Boddaert, 1783)
Asian Openbill.JPG


The Asian openbill stork is mostly greyish (non-breeding season) or white (breeding season) with glossy black wings and tail that have a green or purple sheen.[2]


  1. BirdLife International (2016). "Anastomus oscitans". IUCN Red List of Threatened Species. 2016: e.T22697661A93628985. doi:10.2305/IUCN.UK.2016-3.RLTS.T22697661A93628985.en.
  2. Gosner KL (1993). "Scopate tomia: an adaptation for handling hard-shelled prey? (PDF)" (PDF).