njimmy

Dear all,

I was in Shanghai Binhai park on Dec-10,2006.

Spotted a few ducks and need help in ID. I was wondering this could be a Canvasback ( Aythya valisneria) among the many other Greater Scaup (Aytha marila) I saw.

Cheers from Jimmy Ng

attached JPG, digitscoping using Zeiss 85FL + CP4500, crop and slightly touched using ACDsee.

http://static.flickr.com/129/319370742_0328baaa3b.jpg?v=0

http://static.flickr.com/136/319370738_7d2fe4e165.jpg?v=0

Duck 1

Duck 2

cgeoff

Why do you think it's Canvasback?

Why not a Pochard?


Geoff

lmichael

It is too small for a Canvasback; also bill and head shape is typical of Common Pochard and wrong for Canvasback.

Mike

WWF Mai Po

Dear Jimmy,

If you are using the eighth edition (2005) of the 'Birds of Hong Kong and South China' by Viney, Phillipps and Ying, for your identification, the Common Pochard and Canvasback headings are the wrong way round on page 53. This might be the source of the confusion.

Cheers,

Bena.

tmichael

Thanks for pointing out that now glaring error in Birds of HK and S. China, Bena. It would indeed explain njimmy's mis-identification and potentially that of large nos. of Canvasbacks all over China!

Perhaps some of our members who post to PRC (mainland) birding sites, could draw people's attention to this.

Just a tiny bibliographical correction: the correct citation for the authorship is Viney, Phillipps and Lam.

Mike Turnbull

njimmy

Being a member of HKBWS and, probably the first Hongkong member of the Shanghai Wild Birds Society ( www.shwbs.org) , I posted the above information to the WWF-China SH birdwatchers' BBS already.

Jimmy Ng

fforrest

[quote:4873f1b43a="njimmy"]Being a member of HKBWS and, probably the first Hongkong member of the Shanghai Wild Birds Society ( www.shwbs.org) ,[/quote]
Hi Jimmy,

I think you should also post the information in the forum of ChinaBirdNet which is organized by HKBWS.

ChinabirdNet 中国观鸟网络
http://www.chinabirdnet.org/app/phpBB2/index.php

Regards,

Forrest

njimmy

Hi Forest,

Sorry I was not registered user there, yet.

Rating by the popularity of the various BBS for China birdwatchers, HKBWS probably  need more publicity of that ChinaBirdNet.

From Jimmy Ng

fforrest

Hi Jimmy,

Yes! more publicity about the ChinaBirdNet is required.
At the same, we also need more support from the members of both the HKBWS and SWBS to register into the forum.

Best Regards,

Forrest