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Background Most authorities currently recognize five races of Bean Goose (e.g. Wetlands International 2006). These fall into two groups: those breeding in tundra regions and those breeding in forested taiga areas to the south. There is overlap between these races, however, and the taxonomy of Bean Geese is still uncertain. Two races Anser fabalis rossicus (Tundra Bean) and A. f. fabalis (Taiga Bean) are found in the Western Palearctic and both occur in Britain, although the majority of birds seen here are of the latter race. Due to their widespread distribution, overlapping winter range and the difficulties of separating different races in the field, deriving population estimates of these two sub-species is problematic.
Wildfowl & Wetlands Trust
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