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Bean-goose ID please, tks (1 Viewer)

deanman

Active member
Photoed at Jiangsu Province, East of China.
2 photos same one Goose. Taiga Bean-Goose or Tundra Bean-Goose, Tks.
 

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Nutcracker

Stop Brexit!
Could easily be neither, the Tundra (rossicus) / Taiga (fabalis) dichotomy only really works with western palaearctic Bean Geese. Genetic studies indicate that of the populations of East Asian Bean Goose complex (johanseni, middendorffii and serrirostris) at least some may be basal to the Tundra - Taiga pair . . .
 

stuartelsom

Registered User
Supporter
United Kingdom
If I recall correctly the more sloping stubbier bill is indicative of A. serrirostris 'Thick-billed Bean Goose'.

Stu
 

deanman

Active member
Could easily be neither, the Tundra (rossicus) / Taiga (fabalis) dichotomy only really works with western palaearctic Bean Geese. Genetic studies indicate that of the populations of East Asian Bean Goose complex (johanseni, middendorffii and serrirostris) at least some may be basal to the Tundra - Taiga pair . . .

Thank you!
 

lupokatja

Well-known member
I have no experience with either subspecies (middendorffi or serrirostris), but I have seen pictures of very similar birds that were called middendorffi. I would expect serrirostris to have a somewhat shorter bill and neck than this bird on average, but not sure how extensive the variation is in either subspecies (pictures from middendorffi in Japan tend to show birds that appear even larger, longer-necked, and longer-billed). I would leave this unidentified for now, unless somebody comes along with a more-informed opinion.

Cheers,

Lützen Portengen
 

Andy Hurley

All nations have the right to govern themselves
Opus Editor
Supporter
Scotland
I have no experience with either subspecies (middendorffi or serrirostris), but I have seen pictures of very similar birds that were called middendorffi. I would expect serrirostris to have a somewhat shorter bill and neck than this bird on average, but not sure how extensive the variation is in either subspecies (pictures from middendorffi in Japan tend to show birds that appear even larger, longer-necked, and longer-billed). I would leave this unidentified for now, unless somebody comes along with a more-informed opinion.

Cheers,

Lützen Portengen

Can't I.D. as little or no exp in Far east species and sub species, but McNara might be interested in giving it a shot. Try P.M.ing him?
 

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