Record counts
| # | Migration site | Totals | Date | ||
|---|---|---|---|---|---|
| 1. |  |
VRS Castricum | 2 | 3 October 2003 | |
| 2. | |
VRS Castricum | 1 | 20 July 2001 | |
| 3. | |
VRS Castricum | 1 | 17 May 2002 | |
| 4. | |
VRS Castricum | 1 | 17 September 2002 | |
| 5. | |
VRS Castricum | 1 | 18 September 2003 | |
| 6. | |
VRS Castricum | 1 | 24 September 2003 | |
| 7. | |
VRS Castricum | 1 | 9 October 2004 | |
| 8. | |
VRS Castricum | 1 | 10 June 2005 | |
| 9. | |
VRS Castricum | 1 | 8 October 2005 | |
| 10. | |
VRS Castricum | 1 | 20 September 2008 | |
| 11. | |
VRS Castricum | 1 | 13 September 2009 | |
| 12. | |
VRS Castricum | 1 | 30 July 2010 | |
| 13. | |
VRS Castricum | 1 | 26 June 2011 | |
| 14. | |
VRS Castricum | 1 | 19 July 2011 | |
| 15. | |
VRS Castricum | 1 | 16 September 2011 | |
| 16. | |
VRS Castricum | 1 | 16 September 2013 | |
