Record counts
| # | Migration site | Totals | Date | ||
|---|---|---|---|---|---|
| 1. |  |
VRS Castricum | 4 | 21 April 2018 | |
| 2. | |
VRS Castricum | 3 | 6 May 2018 | |
| 3. | |
VRS Castricum | 2 | 25 August 1994 | |
| 4. | |
VRS Castricum | 2 | 19 April 2018 | |
| 5. | |
VRS Castricum | 1 | 13 August 1971 | |
| 6. | |
VRS Castricum | 1 | 25 August 1973 | |
| 7. | |
VRS Castricum | 1 | 3 September 1990 | |
| 8. | |
VRS Castricum | 1 | 29 August 1992 | |
| 9. | |
VRS Castricum | 1 | 19 September 1994 | |
| 10. | |
VRS Castricum | 1 | 7 February 2018 | |
| 11. | |
VRS Castricum | 1 | 2 March 2018 | |
| 12. | |
VRS Castricum | 1 | 20 April 2018 | |
| 13. | |
VRS Castricum | 1 | 22 April 2018 | |
| 14. | |
VRS Castricum | 1 | 10 May 2018 | |
| 15. | |
VRS Castricum | 1 | 21 November 2018 | |
| 16. | |
VRS Castricum | 1 | 20 April 2019 | |
| 17. | |
VRS Castricum | 1 | 23 April 2021 | |
| 18. | |
VRS Castricum | 1 | 30 April 2021 | |
| 19. | |
VRS Castricum | 1 | 19 April 2022 | |
