Record counts
| # | Migration site | Totals | Date | ||
|---|---|---|---|---|---|
| 1. |  |
VRS Castricum | 2 | 22 August 2017 | |
| 2. | |
VRS Castricum | 2 | 22 May 2020 | |
| 3. | |
VRS Castricum | 2 | 26 May 2020 | |
| 4. | |
VRS Castricum | 1 | 29 July 1999 | |
| 5. | |
VRS Castricum | 1 | 25 August 2001 | |
| 6. | |
VRS Castricum | 1 | 15 August 2002 | |
| 7. | |
VRS Castricum | 1 | 6 September 2003 | |
| 8. | |
VRS Castricum | 1 | 7 September 2003 | |
| 9. | |
VRS Castricum | 1 | 14 September 2003 | |
| 10. | |
VRS Castricum | 1 | 16 September 2003 | |
| 11. | |
VRS Castricum | 1 | 18 September 2003 | |
| 12. | |
VRS Castricum | 1 | 4 September 2005 | |
| 13. | |
VRS Castricum | 1 | 25 July 2006 | |
| 14. | |
VRS Castricum | 1 | 24 May 2007 | |
| 15. | |
VRS Castricum | 1 | 13 May 2008 | |
| 16. | |
VRS Castricum | 1 | 27 July 2008 | |
| 17. | |
VRS Castricum | 1 | 27 June 2011 | |
| 18. | |
VRS Castricum | 1 | 25 July 2012 | |
| 19. | |
VRS Castricum | 1 | 16 August 2016 | |
| 20. | |
VRS Castricum | 1 | 17 May 2017 | |
| 21. | |
VRS Castricum | 1 | 10 August 2017 | |
| 22. | |
VRS Castricum | 1 | 25 August 2017 | |
| 23. | |
VRS Castricum | 1 | 1 September 2017 | |
| 24. | |
VRS Castricum | 1 | 2 September 2017 | |
| 25. | |
VRS Castricum | 1 | 24 June 2020 | |
| 26. | |
VRS Castricum | 1 | 9 August 2020 | |
| 27. | |
VRS Castricum | 1 | 4 June 2021 | |
