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Published: 16 Oct 2017

Kolgans/Egyptian Goose

Pair of Egyptian Geese.jpg

Die kolgans is ‘n gans wat aan die familie van eendvoëls (Anatidae) behoort. Die gans is die enigste oorlewende spesie van die genus Alopochen.

Die voëls kom in Afrika suid van die Sahara voor en verder noord al langs die Nylrivier tot in Egipte. Kolganse is ook as uitheemse spesie na dele van Europa ingebring (veral Engeland en Nederland). Hulle kom wydverspreid in Suid-Afrika voor, behalwe in uiters droë gebiede of hoog bo seespieël.[1]

Die jongste verspreidingskaart in Suid-Afrika, wat tans drie-uurliks opgedateer word, kan by hierdie skakel van SAVAP2 (die tweede Suider-Afrikaanse Voëlatlasprojek) gevind word

The Egyptian goose (Alopochen aegyptiaca) is a member of the duckgoose, and swan family Anatidae. It is native to Africa south of the Sahara and the Nile Valley.

Egyptian geese were considered sacred by the Ancient Egyptians, and appeared in much of their artwork. They have been raised for food and extensively bred in parts of Africa since they were domesticated by the ancient Egyptians. Because of their popularity chiefly as ornamental bird, escapees are common and small feral populations have become established in Western Europe.

It swims well, and in flight looks heavy, more like a goose than a duck, hence the English name.[6] It is 63–73 cm (25–29 in) long.

The sexes of this species are identical in plumage but the males average slightly larger. There is a fair amount of variation in plumage tone, with some birds greyer and others browner, but this is not sex- or age-related. A large part of the wings of mature birds is white, but in repose the white is hidden by the wing coverts. When it is aroused, either in alarm or aggression, the white begins to show. In flight or when the wings are fully spread in aggression, the white is conspicuous.[7]

The voices and vocalisations of the sexes differ, the male having a hoarse, subdued duck-like quack which seldom sounds unless it is aroused. The male Egyptian goose attracts its mate with an elaborate, noisy courtship display that includes honking, neck stretching and feather displays.[8] The female has a far noisier raucous quack that frequently sounds in aggression and almost incessantly at the slightest disturbance when tending her young.[

Published: 16 Oct 2017