Kelp goose (Chloephaga hybrida)

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Male kelp goose
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Kelp goose fact file

Kelp goose description

KingdomAnimalia
PhylumChordata
ClassAves
OrderAnseriformes
FamilyAnatidae
GenusChloephaga (1)

Commonly found in pairs (3), the contrast between the bright white plumage of the adult male and the dark, striped plumage of the female kelp goose presents a striking image (2). The male is almost entirely white, with the exception of the bill, which is black, and the legs and feet, which are orange. The female has more elaborate colouration, with chocolate-brown upperparts, head and neck, while the belly is boldly striped blackish-brown and white. The rump, tail feathers and underwing are also white, with the exception of the black primary feathers visible at the wing tips. The female’s bill is pink, the legs are orange, and there is a thin white ring around the eye. While both male and female juveniles resemble the adult female, the male acquires white plumage on the head, neck and upperparts in the first winter, becoming almost completely white by the second. Along with the contrasting appearances, both sexes produce different vocalisations, with the male kelp goose giving a repeated whistle, and the female, a harsh growl (2).

There are two subspecies of kelp goose, the lesser kelp goose, Chloephaga hybrida hybrida, and the greater kelp goose, Chloephaga hybrida malvinarum, which can be distinguished by size and location (2)

Size
Length: 52 – 65 cm (2)
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Kelp goose biology

The kelp goose is most commonly encountered foraging along the seashore for green seaweed (mainly of the genus Ulva), which forms the bulk of its diet (2) (4).

Egg-laying takes place between late October and early November, with the female kelp goose laying a clutch of four to seven eggs in a nest made of grass and lined with breast feathers, concealed behind the beach amongst tall grass or shrubs (2) (4). During the month-long incubation period, the male stands guard over the female. Once hatched, the chicks are led from the nest, and must find their own food while remaining under the protection of the parent birds. Fledging takes place in February and the young birds become fully independent, but do not reach sexual maturity until two years old (4)

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Kelp goose range

The breeding range of the lesser kelp goose, Chloephaga hybrida hybrida, extends from southern Chile, through Tierra del Fuego to the extreme south of Argentina, with populations at the most southerly regions migrating northwards slightly beyond the northern limits of the breeding range in the winter. The greater kelp goose, Chloephaga hybrida malvinarum, is restricted to the Falkland Islands, where it remains resident throughout the year (2).

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Kelp goose habitat

The kelp goose occupies seaweed-strewn, rocky or shingle coasts, often nearby freshwater, coastal lagoons (2) (3)

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Kelp goose status

Classified as Least Concern (LC) on the IUCN Red List (1).

IUCN Red List species status – Least Concern

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Kelp goose threats

There are currently no significant threats to the kelp goose, and the population is large and stable (1) (2). The only potential risk for this species is a major oil spillage in adjacent seas (2).

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Kelp goose conservation

With a large and healthy population, specific conservation action is not required for the kelp goose (1). Nevertheless, conservation organisations within this species’ range are working to preserve biodiversity, thereby ensuring that the kelp goose remains abundant (5) (6).

View information on this species at the UNEP World Conservation Monitoring Centre.
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Find out more

To learn more about conservation initiatives in the kelp goose’s range visit:

For more information on this and other bird species please see:

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Authentication

This information is awaiting authentication by a species expert, and will be updated as soon as possible. If you are able to help please contact: arkive@wildscreen.org.uk
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Glossary

Primary feathers
In birds, the main flight feathers projecting along the outer edge of the wing.
Subspecies
A population usually restricted to a geographical area that differs from other populations of the same species, but not to the extent of being classified as a separate species.
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References

  1. IUCN Red List (April, 2009)
    http://www.iucnredlist.org
  2. Ogilvie, M.A. and Young, S. (2002) Wildfowl of the World. New Holland Publishers, London.
  3. Wheeler, T. (2004) The Falklands & South Georgia Island. Lonely Planet Publications, London.
  4. Falklands.net (April, 2009)
    http://www.falklands.net/BirdGuideKelpGoose.shtml
  5. Falklands Conservation (April, 2009)
    http://www.falklandsconservation.com
  6. Conservacion Patagonia (April, 2009)
    http://www.conservacionpatagonica.org
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Image credit

Male kelp goose  
Male kelp goose

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