Barnacle Goose (Branta Leucopsis)

October 13, 2012 by  

Barnacle Goose (Branta Leucopsis), 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.

The Barnacle Goose was first classified taxonomically by Johann Matth?us Bechstein in 1803. Its specific epithet is from the Ancient Greek leuko- “white”, and opsis “faced”.

In English, the term “barnacle” originally referred only to this species of goose and only later to the crustacean barnacles. It is sometimes claimed that the word comes from a Celtic word for “limpet”, but the sense-history seems to go in the opposite direction.

Barnacle Goose (Branta Leucopsis)

The Barnacle Goose is a medium-sized goose, 55-70 cm (22-28 in) long, with a wingspan of 130-145 cm (51-57 in) and a body mass of 1.21-2.23 kg (2.7-4.9 lb). It has 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 that look like they are shining when the light reflects on it. During flight a V-shaped white rump patch and the silver-gray underwing linings are visible.

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