Kermadec Petrel illustration
Birdsong field guide

Kermadec Petrel

Pterodroma neglecta

A highly polymorphic gadfly petrel of the subtropical Pacific, notable for its erratic, high-speed flight and white primary feather bases.

What it sounds like

A series of high-pitched, staccato 'kek-kek-kek' notes followed by a drawn-out, mournful 'oo-er' or 'ti-ti-ti'.

Reference call, compare with what you heard
0:00 / 0:09
Rec. Johannes Fischer · MauritiusCC BY-NC-SAXeno-canto

Field notes

  • It is one of the most polymorphic seabirds, occurring in light, intermediate, and dark color morphs within the same colony.
  • Unlike many other gadfly petrels that burrow, this species is primarily a surface-nester, laying eggs under vegetation or in rock crevices.
  • The species displays a distinctive white patch at the base of the primary feathers on both the upper and lower wing surfaces.
  • Breeding cycles are remarkably flexible, with different populations on the same island often nesting in different seasons.
  • It is known for its aggressive aerial displays and will occasionally engage in kleptoparasitism to steal food from other seabirds.
Habitat
Pelagic open ocean and remote subtropical islands with low vegetation or rocky outcrops.
Range
Widespread across the subtropical South Pacific, from eastern Australia to the Juan Fernández Islands off Chile.

Similar & commonly confused birds

Heard a Kermadec Petrel?

Open Birdsong, tap record, and identify the bird singing near you in seconds — then collect it in your field journal.

Identify a bird by its song