Black-headed Gull |
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| Age | Date | Location | Country | Comments | |
 | Juvenile | September 2000 | Hordaland | Norway | |
| Juvenile | September 2000 | Hordaland | Norway | |
| First winter | January 2001 | Hordaland | Norway | |
| First winter | February 2000 | Hordaland | Norway | Swimming |
| First winter | March 2000 | Hordaland | Norway | |
| Adult winter | February 2000 | Hordaland | Norway | Flightshot |
| Adult winter | March 2002 | Hordaland | Norway | |
| Adult winter | March 2000 | Hordaland | Norway | |
| Adult summer | March 2000 | Hordaland | Norway | Spread wing |