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GALLERIES > BIRDS > ANSERIFORMES > ANATIDAE > BARNACLE GOOSE [Branta leucopsis]


Barnacle Goose Image @ Kiwifoto.com
 
 
Location: Slimbridge Wetland Centre, England
GPS: 51.7N, -2.4W, elev=28' MAP
Date: December 28, 2011
ID : B13K1771 [4896 x 3264]

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Barnacle Goose Image @ Kiwifoto.com
 
 
Location: Inn the Park, London, England
GPS: 51.5N, -0.1W, elev=58' MAP
Date: December 26, 2011
ID : B13K1055 [4896 x 3264]

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Barnacle Goose Picture @ Kiwifoto.com
 
 
Location: Inn the Park, London, England
GPS: 51.5N, -0.1W, elev=58' MAP
Date: December 26, 2011
ID : B13K1021 [4896 x 3264]

bird photography

SPECIES INFO

The Barnacle Goose (Branta leucopsis) belongs to the genus Branta of black geese, which contains species with largely black plumage, distinguishing them from the grey Anser species. Despite its superficial similarity to the Brent Goose, genetic analysis has shown it is an eastern derivative of the Cackling Goose lineage.

Description In flight

The Barnacle Goose is a medium-sized goose with a white face and black head, neck, and upper breast. Its belly is white. The wings and its back are silver-gray with black-and-white bars. During flight a V-shaped white rump patch and the silver-gray underwing linings are visible.

Distribution A flock of barnacle geese feeding at Helsinki, Finland

Barnacle Geese breed mainly on the Arctic islands of the North Atlantic. There are three main populations, with separate breeding and wintering ranges; from west to east:

  • Breeding in eastern Greenland, wintering on the Hebrides of western Scotland and in western Ireland. Population about 40,000.
  • Breeding on Svalbard, wintering on the Solway Firth on the England/Scotland border. Population about 24,000.
  • Breeding on Novaya Zemlya, wintering in the Netherlands. Population about 130,000.
  • A new fourth population, derived from the Novaya Zemlya population, has become established since 1975 breeding on the Baltic Sea islands (Estonia, Finland, Denmark, and Sweden), and wintering in the Netherlands. Population about 8,000.

Small numbers of feral birds, derived from escapes from zoo collections, also breed in other north European countries. Occasionally, a wild bird will appear in the Northeastern United States or Canada, but care must be taken to separate out wild birds from escaped individuals, as Barnacle Geese are popular waterfowl with collectors.

Ecology, behavior and life history Flock on autumn migration

Barnacle Geese frequently build their nests high on mountain cliffs; away from predators (primarily Arctic Foxes and Polar Bears) but also away from food. Like all geese, the goslings are not fed by the adults. Instead of bringing food to the newly hatched goslings, the goslings are brought to the ground. Unable to fly, the three day old goslings jump off the cliff and fall; their small size, feathery down, and very light weight helps to protect some of them from serious injury when they hit the rocks below, but many die from the impact. Arctic foxes are attracted by the noise made by the parent geese during this time and capture many dead or injured goslings. The foxes also stalk the young as they are led by the parents to wetland feeding areas.

Its call is a "kaw".

Conservation

The Barnacle Goose is one of the species to which the Agreement on the Conservation of African-Eurasian Migratory Waterbirds (AEWA) applies.

Folklore Barnacle Geese. Facsimile of an Engraving on Wood, from the "Cosmographie Universelle" of Munster, folio, Basle, 1552.

The English name of this species, and the scientific name of the Brent Goose (B. bernicla) and the Goose Barnacle, come from the fable that Barnacle Geese were produced from barnacles, organisms that grow on timber exposed to salt water. This belief stemmed from the observation that these geese were never seen in summer, when they were supposedly developing underwater (they were actually breeding in remote Arctic regions). The barnacles and the geese shared similar black and white colours, plus a certain type of barnacle looked - with a bit of imagination - like a tiny black and white goose. The geese and the barnacles appeared in different seasons. Though the issue was controversial, it was an important part of medieval cuisine because it enabled Catholics to classify these geese as fish and therefore to eat their flesh during Lent.





                                     




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barnacle_goose's Range Map Click here to see the Barnacle Goose's range map!
Listen to the Barnacle Goose Call:



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