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Greylag goose
Anser anser, Linnaeus, 1758
It is the ancestor of the domestic goose. Greylag geese are very attached to their families; they recognize each other in gaggles and mate for life. In the case of the loss of a partner, they go through a period of mourning and it takes a long time before they enter another relationship; sometimes they stay alone permanently. Male and female greylag geese are identical in colour and of the same size.
Distribution: Eurasia; winters in the Mediterranean Basin and in southern and central Asia
male / female
body length: 75–90 cm
wingspan: 150–180 cm
body mass: 2,5–4,1 kg