cywong 7/03/2009 12:08
Are these all Heuglin's Gulls ?
Are these all Heuglin's Gulls ?
Mai Po, 28.02.09
[IMG]http://img.photobucket.com/albums/v191/cywong/IMGL8194s.jpg[/IMG]
[IMG]http://img.photobucket.com/albums/v191/cywong/IMGL8357s.jpg[/IMG]
[IMG]http://img.photobucket.com/albums/v191/cywong/IMGL8633s.jpg[/IMG]
[IMG]http://img.photobucket.com/albums/v191/cywong/IMGL8637s.jpg[/IMG]
[IMG]http://img.photobucket.com/albums/v191/cywong/IMGL8600s.jpg[/IMG]
[IMG]http://img.photobucket.com/albums/v191/cywong/IMGL8575s.jpg[/IMG]
cgeoff 8/03/2009 07:33
Pics 1 & 2: 1st winter mongolicus (Yellow-legged Gull)
Pics 3 & 4: 1st winter and one adult heuglini (Heuglin's Gull)
Pic 5: 1st winter mongolicus
Pic 6: 1st winter heuglini
Geoff
cywong 9/03/2009 19:22
Thanks again for Geoff's expert opinion.
The 1st winter birds of these 2 species look very similar, I can only see the difference in their wings.