Lesser Adjutant illustration
Birdsong field guide

Lesser Adjutant

Leptoptilos javanicus

A large, dark-backed stork with a bare head and neck, the Lesser Adjutant is a solitary scavenger and predator of Asian wetlands. It is distinguished from its larger relative by its smaller size and the absence of a pendulous throat pouch.

What it sounds like

Generally silent, but may produce low-frequency grunts, croaks, or rhythmic bill-clattering during the breeding season.

Reference call, compare with what you heard
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Rec. Antero Lindholm · NepalCC BY-NC-SAXeno-canto

Field notes

  • The name 'Adjutant' refers to its stiff, military-like gait when walking on the ground.
  • Unlike many other stork species, it is typically solitary rather than colonial when foraging in wetlands.
  • It possesses a massive wedge-shaped bill used to capture fish, amphibians, and large invertebrates.
  • The species lacks a functional syrinx, rendering it almost entirely silent except for sounds produced at the nest.
  • It is currently classified as Vulnerable due to habitat loss, specifically the drainage of wetlands and felling of nesting trees.
Habitat
Freshwater marshes, swamps, mangroves, flooded grasslands, and occasionally coastal mudflats.
Range
South and Southeast Asia, ranging from India and Nepal through Indochina to Indonesia.

Similar & commonly confused birds

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