Kingdoms / Animalia / Craniata / Aves / Anseriformes / Anatidae / Chloephaga / Species
< >  Chloephaga picta - Upland goose (Click photographs/illustrations: full picture & further details)
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INFORMATION AVAILABLE

GENERAL & REFERENCES

EXTERNAL APPEARANCES

REPRODUCTION

BEHAVIOUR

NATURAL DIET

RANGE & HABITAT

CONSERVATION

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General and References

Alternative Names (Synonyms)

Magellan Goose
Lesser Magellan Goose (Chloephaga picta picta)
Greater Magellan Goose (Chloephaga picta leucoptera)
Magellangans (German)
Oie de magellan (French)
Ouette de Magellan (French)
Caiquen (Spanish)
Cauquén común (Spanish)
Ganso magallánico (Spanish)

Names for newly-hatched

Gosling, downy.

Names for non-breeding males or other colour-phases

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References

Species Author

Debra Bourne

Major References

B1, B3, B4, B8, B19, B25, B26.

Aviculture references:
J23.13.w7
B7, B29, B30, B31, B40 B95, B97, B128.w1, B128.w2
D1, D8

Other References

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TAXA Group (where information has been collated for an entire group on a modular basis)

Parent Group

Specific Needs Group referenced in Management Techniques

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Aviculture Information

Notes

General information:
  • Sheldgeese are generally hardy, and mostly aggressive particularly in the breeding season, so that pairs require a separate pen. A pen for a pair of these birds may be 80% grazing land to 20% water, with a minimum size of 200 square metres for the smaller species (e.g. Orinoco goose) and 300 square metres for the larger species.
  • Grazing birds, their grass (sward of less than 3 inches 7.5cm preferred) should be supplemented with wheat and pellets outside the breeding season and breeders pellets before and during the breeding season. Additional green food should be provided when there is insufficient grass.
  • Sheltered nest sites may be needed for species which nest early in the year. Ground-level nest boxes, open to the ground, 20x16x16 inches (50x40x40cm), with a ground level entrance hole and containing e.g. dry grass as nesting material.

(B7, B29, B40 B95, B128.w1, D1)

Species-specific information:

  • Upland geese are hardy, easy to keep and feed. They should be provided with healthy turf for grazing, and water. They are aggressive, particularly when breeding, and aggression may increase with age. They are not suitable for mixed collections: pairs require a separate pen. Additional green food should be fed if grazing is not plentiful.
  • These sheldgeese are fairly easy to breed. Close ground cover and a kennel or wigwam should be provided for nesting, as well as suitable open cover. Usually lay end of March to May. Goslings may be parent incubated and reared if predation is not a problem; the geese may re-lay if they do not incubate their eggs.
  • Hybridisation may occur with other Chloephaga spp.: fertile hybrids reported with Chloephaga melanoptera - Andean goose and Chloephaga rubidiceps - Ruddy-headed goose; hybridisation also reported with Branta leucopsis - Barnacle goose, Anser canagica - Emperor goose, Alopochen aegyptiacus - Egyptian goose, Chenonetta jubata - Maned duck.

(J23.13.w7, B29, B30, B31, B94, B97, B128.w2, D1).

Aviornis UK Ringing Scheme recommended average closed ring size: males S 18.0mm, females R 16.0mm (D8).

Management Techniques

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External Appearance (Morphology)

Measurement & Weight

Length 23-26 inches 60-65cm (B3), 60-72cm (B1).
Adult weight General Chloephaga picta picta 2721-3200g (B1); mean 6.4 lbs. (B8).

Chloephaga picta leucoptera mean 7.3 lbs. (B8).

Male Chloephaga picta picta 2834g (B3).
Female Chloephaga picta picta 2721-3200g (B3).
Newly-hatched weight --
Growth rate --

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Head

Adult Bill Male Black.
Variations (If present) --
Eyes (Iris) Male Brown.
Variations(If present) --
Juvenile Bill Black.
Eyes (Iris) Brown.

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Legs

Adult Male Black.
Variations (If present) Yellow.
Juvenile Black.

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Plumage

Adult Male C. p. picta (white-phase) and C. p. leucoptera: Head, neck, breast and abdomen white, flanks and shoulders barred black and white. Upperparts grey posteriorly (rear), tail black.

Wings have secondary coverts (speculum) iridescent green, secondaries and lesser coverts white, primaries dark grey.

Variations (If present) Female: Head and upper neck chestnut, breast chestnut with black barring, otherwise as male.

C. p. picta (barred-phase): abdomen and lower half of neck barred.

Juvenile ‘Dirty white’ rather than pure white feathers on head of male, barring on neck and breast. Secondary coverts brownish not glossy.

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Newly-hatched Characteristics

General: Underparts, including face and most of neck, plus markings on wings and down sides of back silver-grey (darker grey form also), upperparts including cap and hindneck, and line or patch around eye on face dark brown.
Bill: Black.
Feet: Black.

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Reproduction

Reproductive Season

Time of year Begins September (Falklands), October/November (mainland).
No. of Clutches --

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Nest placement and structure

 

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Egg clutches

No. of Eggs Average --
Range 5-8 (B1, B8)
Egg Description Cream-buff.

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Incubation

30 days (B1, B8).

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Hatching

Synchronous.

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Fledging

9-10 weeks (B1); 70 days (B8).

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Sexual Maturity

Males Pairing from about 20 months.
Females Pairing from about ten months.

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Behaviour

Feeding Behaviour

Adults Grazing on land.
Newly-hatched --

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Parental Behaviour

Nest-building As single pairs or in loose groups of nests.
Incubation By female, with male guarding.
Newly-hatched Guarded by both parents. Sometime join wrong brood after territorial disputes between pairs.
Juveniles

Remain with parents until the start of the next breeding season.

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Social Behaviour

Intra-specific Territorial while breeding, but gather for the moult.
Inter-specific Sometimes mixes with Chloephaga rubidiceps - Ruddy-headed goose.

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Sexual Behaviour

Strong permanent pair bonds.

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Predation in Wild

Goslings taken by skuas, kelp gulls, caracaras and peregrine falcons. Red-backed hawks may prey on incubating females. Also foxes on mainland.

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Activity Patterns

 
Circadian --

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Natural Diet

Adults

Basically vegetarian: leaves, stems, seed-heads of grasses and sedges.

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Newly-hatched

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Range and Habitat

Distribution and Movement (Migration etc.)

Normal C. picta picta : Central Argentina south to Tierra del Fuego.

C. picta leucoptera: Falkland Islands.

Falklands population basically sedentary, mainland population move to lower latitudes in winter, as far north as Buenos Aires province, Argentina.

Occasional and Accidental

Rarely to Uruguay in winter.

Introduced

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Habitat

Dry pastures and arable land; also grassy islands and coastal meadows in the Falklands.

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Conservation

Intraspecific variation

Lesser Magellan Goose - C. picta picta
Greater Magellan Goose - C. picta leucoptera

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Conservation Status

Wild Population -
(Importance)

Not considered threatened (B1).

CITES listing --
Red-data book listing --
Threats --

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Captive Populations

Established in collections (B8).

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Trade

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