Asian Openbill song and calls
Anastomus oscitans
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Open the appBirdsong and calls are often the easiest way to identify the Asian Openbill, especially when the bird is hidden in dense foliage. Below is what to listen for.
Song
Generally silent outside the breeding season. No true song.
Calls
During breeding season, they produce a variety of guttural croaks, grunts, and clattering sounds, especially around the nest. These include 'uh-uh-uh' calls and bill-clattering.
When they vocalize
Most vocal during the breeding season at nesting colonies.
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