HKBWS BBS 香港觀鳥會新聞組


    
      
        HKBWS BBS 香 港 觀 鳥 會 新 聞 組
        (http://www.hkbws.org.hk/cgi-bin/YaBB.pl)
      

        Discussion Area 討論區 >> Bird Identification 鳥類辨識 >>  Pls Help!  Pectoral Sandpiper ?!
        
(Message started by: Anton on Apr 28^th, 2006, 12:22pm)

Title: Pls Help! Pectoral Sandpiper ?!
Post by Anton on Apr 28^th, 2006, 12:22pm

Sorry for the poor quality...

http://img.photobucket.com/albums/v225/shark7plus/PICT0010c.jpg

http://img.photobucket.com/albums/v225/shark7plus/PICT0013c.jpg

http://img.photobucket.com/albums/v225/shark7plus/PICT0030c.jpg

http://img.photobucket.com/albums/v225/shark7plus/PICT0038c.jpg

MPNR 米埔
26/4/2006
Minolta 7D + 300

Anton

Title: Re: Pls Help!  Pectoral Sandpiper ?!
Post by macca on Apr 28^th, 2006, 11:51pm

Anton,

looks like a Long-toed Stint to me. Although there is no way to assess the size of the bird from the images, it still looks small and slim like a stint. The bright yellowish legs and bright edges to the upperpart feathers are unlike Pectoral Sand. at this time of year, the bill is a bit too short for Pectoral and although difficult to make out, this bird has apparently very little (if any) primary projection, whereas Pectoral Sand would show an obvious primary projection.

Hope that helps (?)

Ian

Title: Re: Pls Help!  Pectoral Sandpiper ?!
Post by Anton on May 1^st, 2006, 9:35am

Thanks Ian.

Here is one more photo of this bird...maybe this can give more information about its size...could this further confirms its ID? ??? Thanks.

http://img.photobucket.com/albums/v225/shark7plus/PICT0019f.jpg

Title: , of whichRe: Pls Help!  Pectoral Sandpiper ?
Post by macca on May 2^nd, 2006, 3:16am

Anton,

yes the size comparrison helps enormously and offers us a definative answer.

The bird on the left is a Wood Sandpiper, of which Pectoral Sandpiper would be a similar body size but with slightly shorter legs. He we can see the bird on the right, the Long-toed Stint, is considerably smaller than the Wood Sandpiper just like it should be as they really are very small (and infact not that much bigger in body size than a Sparrow!)

Best wishes,

Ian

Title: Re: Pls Help!  Pectoral Sandpiper ?!
Post by Anton on May 2^nd, 2006, 3:17am

Is this bird a juvenile Long-toed Stint? ???

Title: Re: Pls Help! Pectoral Sandpiper ?!
Post by Mike Kilburn on May 2^nd, 2006, 10:46am

It is an adult.

Juvenile birds appear after the breeding season, not before.

The issue of moulting and what plumages birds show at different times of year is a complex one. But as a rule juvenile plumage refers to the first plumage after fledging (after the fluffy chick stage).

Different birds have different moult strategies, and for some birds such as eagles and gulls this can be very complex, as birds take several years and several variations of plumage to reach full maturity.

As a general rule smaller birds have fewer variations of plumage. Adult waders have two plumages - breeding (or summer) plumage, and non-breeding (or winter) plumage.

The issue is much more complex than this, but a small wader should go chick, juvenile, first winter, adult (although some will show a first summer plumage (a duller, less distinct version of adult breeding plumage).

Further input from people who really undersand mult would be welcomed.

Cheers
Mike K

Title: Re: Pls Help!  Pectoral Sandpiper ?!
Post by Anton on May 4^th, 2006, 3:20am

Thanks Mike~~ :D