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NL·0323AnimalsCasuariidaeBird3,677 field observations
Southern cassowaryNL·0323
Plate 1 of 8. (c) Tom Hunt, some rights reserved (CC BY-NC), uploaded by Tom Hunt · via iNaturalist

Herbarium of the Nature Library

Name
Casuarius casuarius
Family
Casuariidae
Native to
Northern Queensland, New Guinea and nearby islands
Habitat
Tropical rainforest, Swamp forest
IUCN LC · Least concern

On eBird ↗

Southern Cassowary

Live sightings near you, the range map, bar charts of when it is seen, and Macaulay Library photos and recordings.

Southern cassowary

Casuarius casuarius

Also calledMuruk (Tok Pisin) · Kasuari (Malay/Indonesian)

A towering, flightless rainforest bird with a bony casque and a dagger-like inner claw. It is a crucial seed disperser for rainforest trees, swallowing fruit whole and depositing seeds far away.

The southern cassowary, also known as double-wattled cassowary, Australian cassowary, or two-wattled cassowary, is a large, flightless, mostly black bird, found in Indonesia, Papua New Guinea, and northeastern Australia. It is one of the three living species of cassowary, alongside the dwarf cassowary and the northern cassowary. It is a ratite and therefore related to the emu, ostrich, rhea and kiwi. Southern cassowaries are among the largest birds in the world, only weighing less than ostriches. Wikipedia

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What it can do

  1. iDisperses seeds of more than 200 plant species, some almost entirely dependent on it
  2. iiInner toe bears a claw up to about 12 cm long, a formidable weapon
  3. iiiLow-frequency booming calls may be partly below human hearing
  4. ivSwims well and can run at up to around 50 km/h through forest
§2

In the field

Field marks

  • aVery large, black, hair-like plumage
  • bTall, helmet-like brown casque
  • cBright blue neck with two red wattles
  • dMassive grey legs with three toes
  • eJuveniles brown; chicks striped
Voice
Deep, rumbling booms and low hisses; mostly heard at close range.
Not to be confused with
Emu is grey-brown and lacks the casque and wattles; it lives in open country. In New Guinea, northern and dwarf cassowaries have different wattle patterns (one or none).
Where to see it
Mission Beach and Etty Bay (Queensland), Daintree, Cape York; New Guinea lowlands
When
Resident
§3

Listen

Looking for field recordings…

§4

Life & habits

Diet
Fallen fruit, fungi, invertebrates and small vertebrates
Habitat
Tropical rainforest, swamp forest, adjacent woodland
Size
1.5–1.8 m tall; females up to about 60–70 kg
Lifespan
Up to about 40 years in captivity

The male alone incubates the eggs for about 50 days and raises the striped chicks for up to nine months.

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Where it lives

Recorded sightings

—

geo-referenced records in GBIF, from museums, herbaria and field observers.

Native range

Northern Queensland, New Guinea and nearby islands

Drag the globe to turn it. Dots are where records exist, not a range map; darker means more records.

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In the old herbals & bestiaries

No plate in the Source Library names this exact species, so these show its closest relatives as the old naturalists drew them: same genus, or the same kind of animal. Click a plate to read the page it came from, with translation.

§7

In the stacks

Searching the stacks…

Every page naming Casuarius casuarius in the Biodiversity Heritage Library →

§8

Marginalia

A 2021 study of ancient eggshell suggested people in New Guinea may have collected and raised cassowary chicks as long as 18,000 years ago, and cassowary-bone daggers were made there into the 20th century.

Curiosity

Although listed as Least Concern globally, the Australian population is listed as Endangered under Australian law.

§9

Kinship

  1. kingdomAnimalia
  2. ›phylumChordata
  3. ›subphylumVertebrata
  4. ›classAves
  5. ›orderCasuariiformes
  6. ›familyCasuariidae
  7. ›genusCasuarius
Open its branch on the Wheel of Life →

Photographs: iNaturalist contributors under the licences shown. Records: GBIF.org. Historical plates: Source Library (CC BY-SA 4.0; originals public domain). Summary text: Nature Library editors and Wikipedia (CC BY-SA). Medicinal and edibility notes are historical and educational, not advice. iNaturalist taxon 20500.