Kiwi

The Kiwi is a small, round-bodied, flightless bird found only in New Zealand, where it is a beloved national icon. Several species exist, generally covered in shaggy, hair-like brown feathers with tiny vestigial wings hidden beneath the plumage and no visible tail. Uniquely among birds, its nostrils sit at the very tip of its long, slender bill rather than at the base.

Kiwi are nocturnal and secretive, relying heavily on an exceptional sense of smell, rare among birds, to locate food by probing leaf litter and soil.

Key Field Marks

• Round, hen-sized body with shaggy, hair-like brown plumage
• Long, slender, slightly downcurved bill with nostrils at the tip
• No visible tail and tiny wings hidden under feathers
• Strong legs relative to body size
• Whisker-like feathers around the face

Similar Species

• No other bird in New Zealand resembles the Kiwi's shape and gait
• Different Kiwi species (Brown, Great Spotted, Little Spotted, Rowi, Tokoeka) are distinguished mainly by size, plumage mottling, and range rather than overall shape

Range

Endemic to New Zealand, found in scattered populations across the North and South Islands and some offshore islands, often in areas with active predator control.

Habitat

Native forest, scrubland, rough farmland, and tussock grassland with dense understory cover for daytime shelter and soft soil for foraging.

Migration

Non-migratory and strongly territorial, with pairs maintaining a stable home range and burrow system.

Behavior

Entirely nocturnal, sheltering by day in burrows, hollow logs, or dense vegetation and emerging at night to forage. Has poor eyesight but a highly developed sense of smell, unusual among birds, used to locate prey underground.

Voice

Males give a shrill, ascending whistling call, while females produce a lower, hoarser cry; pairs often call back and forth at night.

Feeding

Probes soil and leaf litter with its long bill to detect and extract earthworms, insect larvae, and other invertebrates by smell and touch.

Nesting & Breeding

Nests in a burrow or den; the female lays a very large egg relative to her body size, and in most species the male performs most or all of the incubation, which can last over two months.