Straw-necked Ibis illustration
Birdsong field guide

Straw-necked Ibis

Threskiornis spinicollis

A large, distinctively plumaged wading bird endemic to Australia, recognized by its iridescent wings and specialized straw-like neck feathers.

What it sounds like

Generally silent when foraging, but emits low, guttural croaks and harsh grunts at nesting colonies.

Reference call, compare with what you heard
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Rec. Marc Anderson · AustraliaCC BY-NC-NDXeno-canto

Field notes

  • Possesses unique, stiff, yellow feathers on the neck and breast that resemble dried straw, appearing only in mature adults.
  • Earned the nickname 'Farmer's Friend' due to its massive consumption of agricultural pests like locusts and grasshoppers.
  • Highly nomadic species that tracks rainfall across the Australian continent to exploit temporary wetlands and food gluts.
  • Displays a striking metallic iridescence on its black back and wings, reflecting shades of green, bronze, and purple in direct sunlight.
  • Nests in massive colonies, sometimes numbering in the tens of thousands, often constructed over water in lignum or reed beds.
Habitat
Pastures, grasslands, floodplains, and shallow freshwater wetlands.
Range
Widespread across mainland Australia, Tasmania, and occasionally found in New Guinea and Indonesia.

Similar & commonly confused birds

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