Southern Brown Kiwi

Overview

The Southern Brown Kiwi, also known as the tokoeka, is a flightless, nocturnal bird native to the South Island and Stewart Island of New Zealand. Like all kiwi, it is covered in loose, hair-like plumage rather than typical smooth feathering, and it uses a long, flexible bill with nostrils at the very tip to locate invertebrate prey by scent in soil and leaf litter, an adaptation unique among birds.

Feather Identification

• Plumage texture: Loose and hair-like rather than typical feathering, with barbs that do not interlock, giving a shaggy, fur-like coat.
• Color: Streaky brown to grayish-brown overall, providing camouflage in leaf litter.
• Wings: Vestigial and hidden beneath the body plumage, essentially invisible.
• Bill: Long and slender with nostrils positioned at the tip, unique among birds, aiding foraging by scent and touch rather than sight.
• Versus similar kiwi: Other brown kiwi species, such as the North Island Brown Kiwi, are similar in plumage but occupy different islands and can show subtle differences in tone and size.

Plumage Notes

Sexes are similar in color, though females are noticeably larger than males. Chicks hatch already covered in adult-like shaggy plumage rather than down. Molt is gradual and continuous rather than a single distinct seasonal event.

Habitat & Range

The Southern Brown Kiwi is found on the South Island and Stewart Island of New Zealand, in native forest, scrubland, and tussock grassland. It is nocturnal and largely sedentary within a home territory, and non-migratory.

Behavior & Field Notes

Southern Brown Kiwis forage at night by probing soil and leaf litter with their long bill, using an acute sense of smell to locate invertebrates. Monogamous pairs typically share a territory and nest in a burrow or natural cavity. The species gives a distinctive shrill call at night, with males and females sounding different.