Anser serrirostris / Tundra bean goose (Anser serrirostris)

Wikipedia: Tundra bean goose Quelle: OTHER Tundra_Bean_Goose.jpg
Systematik: Gattung Feldgänse (Anser); Tribus Echten Gänse (Anserini); Unterfamilie Gänse (Anserinae); Familie Entenvögel (Anatidae)
Dieser Vogel erscheint jenseits grossen Meere in Kontinenten : Europa, Nordamerika.
Allgemein: The tundra bean goose (Anser serrirostris) is a goose that breeds in northern Siberia. This and the taiga bean goose are recognised as separate species by the American Ornithological Society and International Ornithologists' Union, but are considered a single species by other authorities (collectively called bean goose). It is migratory and winters further south in Asia. The taiga and tundra bean goose diverged about 2.5 million years ago and established secondary contact ca. 60,000 years ago, resulting in extensive gene flow.^[1] [more]

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