Australian Ibis illustration
Birdsong field guide

Australian Ibis

Threskiornis molucca

A large, iconic wading bird native to Australia, characterized by its white plumage, bald black head, and long, decurved bill. Highly adaptable, it has transitioned from its original wetland habitats to become a ubiquitous presence in urban environments.

What it sounds like

Typically silent, but produces harsh, guttural croaks and repetitive honks when nesting or threatened.

Reference call, compare with what you heard
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Rec. Romuald Mikusek · AustraliaCC BY-NC-SAXeno-canto

Field notes

  • Commonly referred to as the 'bin chicken' or 'tip turkey' due to its successful colonization of urban landfills and parks.
  • The bare black skin of the head and neck is an evolutionary adaptation to maintain hygiene while probing in muddy or messy substrates.
  • During the breeding season, a patch of bare skin under the wing turns a bright, fleshy red to signal reproductive readiness.
  • Their bills contain specialized mechanoreceptors called 'Herbst corpuscles' that allow them to detect prey by touch in murky water.
  • Originally an inland species, they migrated toward coastal cities in large numbers during the 1970s following severe droughts in their native breeding grounds.
Habitat
Wetlands, tidal flats, grasslands, and increasingly, urban parks and suburban areas.
Range
Primarily Northern and Eastern Australia, but also found in New Guinea and parts of Indonesia.

Similar & commonly confused birds

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