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Overview
New Zealand fernbird

New Zealand fernbird

Wikipedia

The New Zealand fernbird or simply fernbird is an insectivorous bird endemic to New Zealand. In the Māori language, it is named kōtātā or mātātā.

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Distribution

Region

New Zealand archipelago

Typical Environment

Occurs patchily across lowland and coastal wetlands, reedbeds, and dense scrub, including raupō, sedges, manuka/kanuka, and gorse thickets. It favors areas with tangled ground cover and standing water margins where it can remain concealed. Also present on some predator-managed offshore islands. Habitat loss through wetland drainage has fragmented its range, but it persists where dense cover remains.

Altitude Range

Sea level to 800 m

Climate Zone

Temperate

Characteristics

Size16–19 cm
Wing Span18–22 cm
Male Weight0.025 kg
Female Weight0.023 kg
Life Expectancy5 years

Ease of Keeping

Beginner friendly: 1/5

Useful to know

The New Zealand fernbird is a secretive skulker of dense wetlands and scrub, more often heard than seen. It has a long, ragged-looking tail and a weak, fluttering flight, preferring to run and climb through vegetation. Its presence indicates relatively healthy wetland habitat, and it is known in Māori as kōtātā or mātātā.

Gallery

Bird photo
Bird photo
New Zealand fernbird nest from the collection of Auckland Museum

New Zealand fernbird nest from the collection of Auckland Museum

Bird photo
Bird photo
Bird photo
Bird photo
Bird photo

Behaviour

Temperament

secretive and skulking

Flight Pattern

short rapid wingbeats; weak, low fluttering flights

Social Behavior

Typically found in pairs or small family groups holding territories year-round. Nests are domed or partially domed and placed low in dense sedges or scrub. Both parents participate in rearing the young, and pairs often duet or keep contact with sharp calls.

Migratory Pattern

Resident

Song Description

Song is a series of thin, metallic notes and short trills delivered from cover, often interspersed with sharp ticking contact calls. The call can carry surprisingly far in calm conditions, aiding pair contact in dense vegetation.

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