Great Spotted Kiwi

Overview

The Great Spotted Kiwi, also known as roroa, is the largest of New Zealand's kiwi species and is restricted to the South Island, where it favors rugged mountain forest and subalpine tussock grassland, often at higher elevations than other kiwi. Its hair-like plumage is grayer than the brown kiwi species and marked with irregular pale banding, giving it a more mottled or streaked appearance.

Feather Identification

• Plumage texture: Hair-like and loose, as in all kiwi.
• Color: Grayer base color than the brown kiwi species, with irregular pale banding or mottling across the feathers producing a subtly spotted or streaked pattern.
• Wings: Vestigial and hidden under body feathers.
• Bill: Long, with nostrils at the tip.
• Versus similar kiwi: The brown kiwi species show plainer, more uniformly reddish-brown plumage without the grayer, mottled banding of this species; it is also the largest kiwi by size.

Plumage Notes

Sexes are similar in color, with females larger than males. Chicks hatch with adult-like plumage rather than distinct down, and molt is gradual and continuous rather than seasonal.

Habitat & Range

The Great Spotted Kiwi is restricted to the South Island of New Zealand, favoring mountain forest and subalpine tussock grassland, often at higher elevations than other kiwi species. It is nocturnal and non-migratory.

Behavior & Field Notes

Great Spotted Kiwis forage at night in forest litter and tussock for invertebrates, using their keen sense of smell. They are generally solitary or in loosely bonded pairs and nest in burrows dug into hillsides. The species gives a shrill call at night, with distinguishable male and female voices.