|
|
|
|
|
|
|
| Mark B Bartosik | profile | all galleries >> From the field - current news photoblog >> Great Black-backed Gulls - UTC 2012 - plumage differences | tree view | thumbnails | slideshow |
 Great Black-backed Gulls UTC Dec12 800.jpg |
 Great Black-backed Gulls tails UTC Dec12 800.jpg |
| comment | share |