Birds in Backyards

Cape Barren Goose. Cape Barren Goose.
Photo: K Vang and W Dabrowka © Bird Explorers

Cape Barren Goose, adult and goslings. Cape Barren Goose, adult and goslings.
Photo: K Vang and W Dabrowka © Bird Explorers

Cape Barren Goose, nesting. Cape Barren Goose, nesting.
Photo: K Vang and W Dabrowka © Bird Explorers

Cape Barren Goose. Cape Barren Goose.
Photo: Purnell Collection © Australian Museum

Distribution map of Cereopsis novaehollandiae Distribution map of Cereopsis novaehollandiae
Map © Birds Australia Birdata

Did you know?

The Cape Barren Goose is able to drink salty or brackish water, allowing many of them to remain on offshore islands all year round.

Facts and figures

Research Species: No
Minimum size: 75 cm
Maximum size: 100 cm
Average size: 87 cm
Breeding season: July to September.
Clutch size: Four to six.
Incubation: 35 days

Calls

On the ground usually quiet unless alarmed or in display. In flight more vocal, male has higher pitched, harsh trumpeted 'ark, ark-ark'.

Conservation status

Federal - Vulnerable
NSW - Vulnerable
NT - Not present
Qld - Not present
SA - Rare
Tas - Secure
Vic - Vulnerable
WA - Secure

Status of Australian Birds

Plants associated with this species

Island tussock grass, Poa poiformis.

Cape Barren Goose

Scientific name: Cereopsis novaehollandiae
Family: Anatidae
Order: Anseriformes

Featured Bird Groups
Water birds

What does it look like?

Description

The Cape Barren Goose is a very large, pale grey goose with a relatively small head. Its stubby triangular bill is almost concealed by a very prominent greenish-yellow cere (skin above the bill). It has rows of large dark spots in lines across the scapulars (shoulders) and wing coverts. The legs are pink to deep red and the feet black. In flight it shows dark wingtips and along the trailing edge of the wings. It is also known as the Pig Goose.

Where does it live?

Distribution
The Cape Barren Goose is found on the south-eastern coast of Australia, the southern coast of Western Australia and in south-eastern Victoria. It is locally dispersive and has been introduced to Kangaroo Island
Habitat
The Cape Barren Goose is found on offshore islands, usually granite, in areas of pasture, tussock grass or low heathy scrub.
Seasonal movements
During the summer, the non-breeding geese generally leave the islands for the mainland where they feed on improved pasture.

What does it do?

Feeding
The Cape Barren Goose is a grazing bird, eating predominantly the common island tussock grass, Poa poiformis, as well as spear grass and various herbs and succulents. They also eat pasture grasses, including barley and clover, and legumes.
Breeding

The Cape Barren Goose lays eggs in a nest in the tussocks of open grasslands. The nest is built by the male and lined with down. Each pair establishes a territory in autumn, prepares a nest and defends it noisily and determindly against other geese. This species is monogamous, and pair-bonds are life-long. The female incubates the eggs, and the young are brooded by both parents equally.

Living with us

Living with humans

By the 1950s, numbers of the Cape Barren Goose were so low that biologists feared they may be close to extinction. Various initiatives have been taken which have increased the goose population to a level where they are no longer considered to be in danger. However they remain one of the world's rarest geese.

References

Marchant, S. and Higgins, P.J. (eds.), 1990. Handbook of Australian, New Zealand and Antarctic Birds. Vol. 1. Part B. Oxford University Press: Melbourne.

Simpson, K and Day, N. 1999. Field guide to the birds of Australia, 6th Edition. Penguin Books, Australia.

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