Bellbird/korimako
PHOTO: Shellie Evans ©

Introduction

The melodious bellbird is still widespread but mammalian predators keep their numbers low.

Highlights

New Zealand status: Endemic
Conservation status: Not Threatened
Found in:
North, South, Stewart and Auckland Islands and many offshore islands
Threats: Predation

Facts

Features

Most New Zealanders can easily recognise the bellbird by its melodious song, which Captain Cook described as sounding ‘like small bells exquisitely tuned’.

Well camouflaged, the bellbird is usually heard before it is seen. Females are dull olive-brown, with a slight blue sheen on the head and a pale yellow cheek stripe. Males are olive green, with a purplish head and black outer wing and tail feathers.

Where are they found?

Bellbirds are unique to New Zealand, occurring on the three main islands, many offshore islands and also the Auckland Islands.

When Europeans arrived in New Zealand, bellbirds were common throughout the North and South Islands. Their numbers declined sharply during the 1860s in the North Island and 1880s in the South Island, about the time that ship rats and stoats arrived.

For a time it was thought they might vanish from the mainland. Their numbers recovered somewhat from about 1940 onwards. They are almost completely absent on the mainland north of Hamilton, and are still rare in parts of Wellington, Wairarapa, and much of inland Canterbury and Otago.

They are recovering in Wellington, parts of Christchurch, and in other places with regular pest control. A translocation to Hamilton was unsuccessful.

Bellbird habitat

Bellbirds live in native forest (including mixed podocarp-hardwood and beech forest) and regenerating forest, especially where there is diverse or dense vegetation. They can be found close to the coast or in vegetation up to about 1200 metres.

In the South Island they have been found inhabiting plantations of eucalypts, pines or willows. They can be spotted in urban areas, especially if there is bush nearby.

Typically they require forest and scrub habitats, reasonable cover and good local food sources during the breeding season, since they do not travel far from the nest. However, outside the breeding season they may travel many kilometres to feed, especially males.

Bellbird songs

Bellbird song comprises three distinct sounds resembling the chiming of bells.

They sing throughout the day, but more so in the early morning and late evening. The alarm call is a series of loud, rapidly repeated, harsh staccato notes.

Just as people from different parts of New Zealand can have noticeable regional accents (think of the Southlander’s rolling ‘r’), bellbirds also sing with regional ‘dialects’.

Bellbird songs vary enormously from one place to another, even over short distances. For example, a study in Christchurch found that birds in three patches of bush on the Port Hills all had different songs.

There is also anecdotal evidence that male and female bellbirds sing different songs, at least during some parts of the year. The song of juveniles is not fully developed straight away so an expert can distinguish their songs from adult songs.

Sound recordings

Bellbird/korimako group (MP3, 2,821K)
01:22 – Five adults singing on Little Barrier Island.

Bellbird/korimako adult male (MP3, 561K) 
00:35 – Adult male

Bellbird/korimako adult alarm call (MP3, 1,300K)
01:22 – Adult sitting in a tree near a track giving an alarm call.

Bird songs may be reused according to our copyright terms.

Feeding

Bellbirds are generalist feeders; they eat nectar, fruit and insects, with insects being particularly important to females and chicks during the breeding season. They often feed in tree canopies but do come down to feed on flax and native fuchsia nectar.

As nectar-feeders (or ‘honeyeaters’ as scientists call them), bellbirds are important pollinators of many native plant species, such as mistletoe, fuchsia and kowhai.

Breeding

The breeding season is approximately September through to February. Bellbirds are strongly territorial during the breeding season. Bellbirds are known to mate with the same partner year after year, and the pair maintains the same breeding territory each year.

Bellbirds tend to nest in trees, and prefer trees with dense foliage for cover. The female makes the nest, lays 3 to 5 eggs, and incubates the clutch.

Both parents feed the chicks, which fledge after 14 days. A pair can raise two broods in a season.

Threats

Although bellbirds are still widespread on the New Zealand mainland, research has shown that mammalian predators, such as rats and stoats, keep their numbers low.

Where bellbirds persist on the mainland, numbers are usually lower than on islands where predators are absent. While possums have not been proven to kill bellbirds, they do compete with bellbirds for food.

Our work

Bellbirds are among the species that benefit from DOC's pest control work.

In 2010 the bellbird was rediscovered on Motutapu Island, after an absence of more than 100 years. This follows one of New Zealand’s largest ever island pest eradication programmes on Motutapu and Rangitoto Islands in 2009.

You can help

Help protect New Zealand's native birds

  • Volunteer with DOC or other groups to control predators and restore bird habitats.
  • Don’t throw rubbish into water ways or storm drains.
  • Set traps for stoats or rats on your property. Get more information from your local DOC office.
  • Put a bell on your cat's collar, feed it well, and keep it indoors at night.
  • Plant a range of native plants that provide food year-round to encourage birds into your garden.
When visiting parks, beaches, rivers, and lakes
  • Only take dogs to areas that allow them, and keep your dog under control.
  • Prevent the spread of pests. Check your gear for mice and rats when visiting pest-free islands.
  • Use available access ways to get to the beach. Stay out of fenced-off areas. Leave nesting birds alone.
  • Get your dog trained in avian awareness, and help save forest birds like kiwi and weka.
  • Follow the water care code. Keep water craft speed to 5 knots within 200 metres of the shore.
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