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Overview
Chatham Islands bellbird

Chatham Islands bellbird

Wikipedia

The Chatham Islands bellbird or kōmako is an extinct species of bird in the family Meliphagidae. It was endemic to the Chatham Islands.

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Distribution

Region

Southwest Pacific (Chatham Islands)

Typical Environment

Historically confined to forest and coastal scrub on Chatham, Pitt, and smaller nearby islands. It frequented flowering shrubs and trees for nectar, and used dense understory for nesting. Birds were most often noted at forest edges and sheltered gullies. Degradation of these habitats and the arrival of mammalian predators drove its rapid decline. No verified observations have been made since the early twentieth century.

Altitude Range

Sea level to 300 m

Climate Zone

Temperate

Characteristics

Size17–20 cm
Wing Span23–28 cm
Male Weight0.032 kg
Female Weight0.028 kg
Life Expectancy6 years

Ease of Keeping

Beginner friendly: 1/5

Useful to know

The Chatham Islands bellbird (kōmako) was a honeyeater endemic to the Chatham Islands and is now extinct. It was closely related to the New Zealand bellbird but differed in plumage and voice. Rapid decline followed habitat loss and the introduction of predators such as cats and rats, with the last confirmed records from the early 1900s.

Gallery

Bird photo
Bird photo
Bird photo
Nest

Nest

Chatham Island bellbird (Anthornis melanocephala) specimen from the Auckland Museum collection.

Chatham Island bellbird (Anthornis melanocephala) specimen from the Auckland Museum collection.

Behaviour

Temperament

solitary and territorial

Flight Pattern

short rapid wingbeats

Social Behavior

Pairs defended nectar sources strongly during the breeding season but gathered loosely where flowers were abundant. Nests were cup-shaped and placed in shrubs or small trees, built from grasses and plant fibers. Clutches were small, typically two to three eggs, with both parents feeding nestlings.

Migratory Pattern

Resident

Song Description

Rich, bell-like notes delivered in clear, ringing phrases that carried through the forest. Calls included sharp chinks and softer contact notes, with a lively dawn chorus during the breeding season.

Identification

Leg Colorblackish-grey
Eye Colordark brown

Plumage

Male with contrasting dark head and olive-olivegreen body; female duller olive-brown with lighter underparts. Feathers appeared sleek with minimal streaking and a soft, velvety sheen on the head in males.

Feeding Habits

Diet

Primarily nectar from flowering shrubs and trees such as flax (harakeke), supplemented by insects gleaned from foliage and bark. It also took small spiders and occasionally soft fruits and berries. Foraging involved probing flowers with a brush-tipped tongue and snapping at small insects in short sallies.

Preferred Environment

Forest edges, flowering clearings, and sheltered gullies where nectar sources were concentrated. It fed both in the canopy and mid-story, often visiting repeatedly blooming plants within its territory.

Population

Total Known PopulationExtinct; no known surviving individuals

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