Everything about Cereopsis totally explained
The
Cape Barren Goose,
Cereopsis novaehollandiae
is a large
goose resident in southern
Australia.
These are bulky geese and their almost uniformly grey plumage, bearing rounded black spots, is unique. The tail and flight feathers are blackish and the legs are pink with black feet. The short, decurved black bill and green
cere gives it a very peculiar expression.
The Cape Barren Goose is 75-100 cm (30-40 in) long, and has a 150-190 cm (59-75 in) wingspan; males are somewhat larger than females. The male weighs on average 5.29 kg (11.6 lbs) and the female 3.77 kg (8.3 lbs).
This
bird feeds by grazing and rarely swims. It is gregarious outside the breeding season, when it wanders more widely, forming small flocks.
It is a most peculiar goose of uncertain affiliations (Sraml
et al. 1996). It may either belong into the "true geese" and
swan subfamily Anserinae or into the
shelduck subfamily
Tadorninae as distinct
tribe Cereopsini, or be separated, possibly including the prehistorically
extinct flightless
New Zealand Geese of the genus
Cnemiornis, in a distinct subfamily
Cereopsinae. Indeed, the first bones of the
New Zealand birds to be discovered were similar enough to those of the Cape Barren Goose to erroneously refer to them as "New Zealand Cape Barren Goose" (
"Cereopsis" novaezeelandiae).
A previous decline in numbers appears to have been reversed as birds in the east at least have adapted to feeding on agricultural land. The breeding areas are grassy islands off the Australian coast, where this species nests on the ground in colonies. It bears captivity well, quite readily breeding in confinement if large enough paddocks are provided.
In Australia,
19th century explorers named a number of islands "
Goose Island" due to the species' presence there.
The smaller population of Cape Barren Goose in
Western Australia is described as a subspecies,
Cereopsis novaehollandiae grisea, and named for the group of islands known as the
Recherche Archipelago.
Further Information
Get more info on 'Cereopsis'.
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