|
| 3rd calendar year |
|
| 3rd calendar year |
|
| 2nd calendar year |
|
| Adult. Ringed as a chick near Antwerp, Belgium in May 2002. |
|
| Adult |
|
| Adult |
|
| Adult |
|
| 2nd calendar year with advanced head moult and bill colour. |
|
| 2nd calendar year |
|
| Adult |