Abbott's Booby illustration
Birdsong field guide

Abbott's Booby

Papasula abbotti

Abbott's Booby is a large, ancient seabird and the sole extant member of the genus Papasula, distinguished by its specialized canopy-nesting behavior.

What it sounds like

A series of loud, guttural braying calls; males produce higher-pitched notes while females deliver a lower, raucous quacking.

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

Field notes

  • It is the only member of the Sulidae family that nests exclusively in the upper canopy of tall tropical rainforests.
  • The species is endemic to a single breeding location: Christmas Island in the eastern Indian Ocean.
  • It possesses one of the longest breeding cycles of any bird, often requiring 15 to 18 months to successfully fledge one chick.
  • Individuals reach sexual maturity exceptionally late, typically not breeding until they are eight or nine years old.
  • Fossil evidence suggests this lineage was once widely distributed across the Pacific and Indian Oceans before contracting to its current range.
Habitat
Tall emergent rainforest trees (breeding) and deep pelagic tropical waters (foraging).
Range
Endemic to Christmas Island; ranges into the surrounding eastern Indian Ocean.
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