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)
      

        Special Topics 特別主題 >> Swifts and Swallows 燕與雨燕 >>  Sand Martin Inflight 灰沙燕飛
        
(Message started by: pippenho on Jan 10^th, 2006, 11:41am)

Title: Sand Martin Inflight 灰沙燕飛
Post by pippenho on Jan 10^th, 2006, 11:41am

08/01/2006
Lut Chau 甩洲

Camera model: Canon EOS-1D Mark II
Lens : EF400L f5.6
Date/Time: 2006:01:08
Flash used: No
Exposure time: #1. #2. (1/1250)
Aperture: f/5.6
ISO equiv.: 800
Exposure bias: -0.67
Whitebalance: Manual
Metering Mode: matrix
Exposure: aperture priority (semi-auto)

1.
http://www.hkbws.org.hk/fileServer/PhotoG/pippenho/pippenho_0198.jpg
http://images4.fotop.net/albums2/pippenho/Sand_Martin/GF2V5815b.jpg

2.
http://www.hkbws.org.hk/fileServer/PhotoG/pippenho/pippenho_0199.jpg
http://images4.fotop.net/albums2/pippenho/Sand_Martin/GF2V5790b.jpg

Title: Re: Sand Martin Inflight 灰沙燕飛
Post by Paul Leader on Jan 10^th, 2006, 12:27pm

Excellent photographs, and in terms of plumage, very dark and uniform compared to springs birds. I saw two at Ma Tso Lung yesterday which were very similar, but perhaps even darker. That may be because they were more advanced in moult (with only two old primaries and no old secondaries).

Do you have photos, even poor ones, which show the underparts?

Title: Re: Sand Martin Inflight 灰沙燕飛
Post by pippenho on Jan 10^th, 2006, 12:54pm

on 01/10/06 at 12:27:02, Paul Leader wrote:

Thanks Paul! Here you are ;D

http://www.hkbws.org.hk/fileServer/PhotoG/pippenho/pippenho_0200.jpg
http://images4.fotop.net/albums2/pippenho/Sand_Martin/GF2V5868a.jpg