Thanks. These are recognised as separate species by the American Ornithologists' Union, but are considered a single species by other authorities, such as the British Ornithologists' Union. I'm British and they were seen in Britain so that's my side! Apparently Bean Geese can be quite variable in body size and bill size, shape and colour. The RSPB, of which I am a member, (and my brother was Head Warden until retiring) still uses Anser fabalis.
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Thanks. These are recognised as separate species by the American Ornithologists' Union, but are considered a single species by other authorities, such as the British Ornithologists' Union. I'm British and they were seen in Britain so that's my side!
Apparently Bean Geese can be quite variable in body size and bill size, shape and colour. The RSPB, of which I am a member, (and my brother was Head Warden until retiring) still uses Anser fabalis.
Nice! You seem to have the tundra variety here. Correct me if I'm wrong but hasn't that been split from fabalis as a distinct species?