The Asian openbill, a member of the stork family Ciconiidae, is a large wading bird recognized by its distinctive beak structure. The adult bird's beak features a notable gap between the arched upper mandible and the recurved lower mandible, a trait absent in the young. This species exhibits sexual dimorphism, with the males typically larger than the females. The plumage transitions from greyish during the non-breeding season to predominantly white in the breeding season, complemented by glossy black wings and tail with hints of green or purple iridescence.
To identify the Asian openbill, look for the unique gap in the adult's beak and its relatively small stature for a stork, standing at 68 cm in height. The bird's short legs range in color from pinkish to grey, turning reddish prior to breeding. In flight, the Asian openbill can be distinguished by its broad wings and neck outstretched, often mistaken for a white stork or Oriental stork from a distance.
Asian openbills frequent inland wetlands, avoiding river banks and tidal flats. They are adaptable, often seen foraging in crop fields, irrigation canals, and seasonal marshes.
This species is indigenous to the Indian subcontinent and Southeast Asia. It is a resident bird within its range but undertakes long-distance movements in response to climatic changes and food availability.
