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ZEISS DTI thermal imaging cameras. For more discoveries at night, and during the day.

Tiaga or Tundra, near Beidaihe, east coast China 3 October 2019 (1 Viewer)

FXM

Frank Moffatt
A few poor images of three geese on the mud adjacent to Stone River Island a little north of Beidaihe, east coast China. I've shown them to a few people and there seems to be a difference of opinion. Seen Bean Geese in the area but mainly in flight so a rare opportunity to see some relatively close. We tended to favour serrirostris but there's a school of thought suggesting short-billed middendorfii. Bean Goose1a.jpg Any thoughts please?
 

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To me these pictures seem to show fairly squat looking birds, with shortish necks, shortish bills, and rounded heads, all suggesting serrirostris. Pictures like this can be deceiving, but I am struggling to see any features that suggest middendorffii?

Cheers,

Lützen Portengen
 
To me these pictures seem to show fairly squat looking birds, with shortish necks, shortish bills, and rounded heads, all suggesting serrirostris. Pictures like this can be deceiving, but I am struggling to see any features that suggest middendorffii?

Cheers,

Lützen Portengen
Many thanks for your input Lützen,

I'd agree with your points but the suggestions from others include: longish necks, long legs, large body and big head. All hard to judge from photos (either way), but very welcome opinions.

The one point I definitely agree with that those in the middendorffii camp point out is that the bill base does not appear to be deep (high) and to me the bills look relatively thin - not big and chunky (triangular) as in serrirostris (not sure of variation in either sp.)?

To me the bills look relatively short. All bills look quite similar so it might be considered a coincidence if all three happened to be short-billed middendorffii?

Does anyone know the status of serrirostris and middendorffii around east coast China? Those birds I see reasonable well in flight look Whooper-like so I simply assume they're the latter. Wondered how regular / common the former is in the region?

Regards
Frank
 
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