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        Discussion Area 討論區 >> Bird Identification 鳥類辨識 >>  Possible Nordmann's Greenshank at MPNR
        
(Message started by: Neil on Apr 19^th, 2006, 5:45pm)

Title: Possible Nordmann's Greenshank at MPNR
Post by Neil on Apr 19^th, 2006, 5:45pm

Taken yesterday at 16/17. This is a crop from a larger image and this white underwing wader stood out from all the others. Could it be a Nordmann's ?
Neil.

MPNR
Hong Kong,
China.
18/04/06

Nikon D2x plus Nikon 300/2.8 AFS plus Nikon 1.4x tele

http://www.pbase.com/neilfif11/image/58877318.jpg

Title: Re: Possible Nordmann's Greenshank at MPNR
Post by John Holmes on Apr 22^nd, 2006, 7:46pm

Hello Neil,

I don't think any of these are Nordmann's. It's hard to be sure looking at the birds in the picture, but the feet on Nordmann's do not project beyond the tail tip.

Regards
John

P.S. I agree with Karl about the Sanderling and Wood Sandpiper IDs in the other posts

Title: Re: Possible Nordmann's Greenshank at MPNR
Post by Karl on Apr 23^rd, 2006, 12:15am

even though the bird in the middle has a whitish underwing covert but i have tried to magnify the image a bit and compared the overall size and ratio from the other marsh sandpipers, they are the same.

any experts out there are experienced in the underwing covert color variation of marsh sandpiper?

Title: Re: Possible Nordmann's Greenshank at MPNR
Post by Andrew on Apr 23^rd, 2006, 1:14pm

This is an interesting picture not least for the contorted body position and Iwonder whether this contributes to this bird looking particularly pale compared to the others which show some underwing but more shaded. The outer primaries have dark tips on this bird just like the others and the general underwing pattern looks OK for Marsh sandpiper. The head and neck don't seem to have the same degree of streaking but again this bird is lit differently. The bill looks fine and straight but its hard to see how far the legs would project beyond the tail but my reference books suggest that both Common and Nordmanns show little projection and some, as John says, say Nordmann's has no projection of the toes. I think this is Marsh sandpiper but I am definitely not an expert! I just found it a nice puzzle to work through.

Title: Re: Possible Nordmann's Greenshank at MPNR
Post by Neil on Apr 23^rd, 2006, 6:19pm

Thanks for your comments. I I'll have to keep looking for the Nordmann's.Neil.

Title: Re: Possible Nordmann's Greenshank at MPNR
Post by gjcarey on Apr 23^rd, 2006, 8:48pm

These are all Marsh Sandpipers. Have a look at the bill shape and structure, and the head pattern. It is the same on all birds.

The bird you mention appears whiter simply because of the angle of view, which allows more light on the underparts. If you look at the bill and head, it is exactly the same as the others.

Geoff