Record counts
| # | Migration site | Totals | Date | ||
|---|---|---|---|---|---|
| 1. |  |
VRS Castricum | 3 | 14 April 2021 | |
| 2. | |
VRS Castricum | 2 | 8 May 2012 | |
| 3. | |
VRS Castricum | 2 | 12 April 2020 | |
| 4. | |
VRS Castricum | 2 | 5 March 2021 | |
| 5. | |
VRS Castricum | 2 | 7 March 2021 | |
| 6. | |
VRS Castricum | 1 | 24 April 1995 | |
| 7. | |
VRS Castricum | 1 | 23 May 1996 | |
| 8. | |
VRS Castricum | 1 | 23 April 2005 | |
| 9. | |
VRS Castricum | 1 | 3 May 2009 | |
| 10. | |
VRS Castricum | 1 | 2 March 2018 | |
| 11. | |
VRS Castricum | 1 | 6 May 2018 | |
| 12. | |
VRS Castricum | 1 | 30 March 2019 | |
| 13. | |
VRS Castricum | 1 | 14 April 2019 | |
| 14. | |
VRS Castricum | 1 | 15 April 2019 | |
| 15. | |
VRS Castricum | 1 | 27 February 2021 | |
| 16. | |
VRS Castricum | 1 | 10 March 2021 | |
| 17. | |
VRS Castricum | 1 | 20 March 2021 | |
| 18. | |
VRS Castricum | 1 | 24 March 2021 | |
| 19. | |
VRS Castricum | 1 | 1 April 2021 | |
| 20. | |
VRS Castricum | 1 | 4 April 2021 | |
| 21. | |
VRS Castricum | 1 | 12 April 2021 | |
