Record counts
| # | Migration site | Totals | Date | ||
|---|---|---|---|---|---|
| 1. | Breskens | 1 | 18 April 1985 | ||
| 2. | Breskens | 1 | 10 April 1993 | ||
| 3. | Breskens | 1 | 11 May 1993 | ||
| 4. | Breskens | 1 | 21 April 1996 | ||
| 5. | Breskens | 1 | 9 April 1997 | ||
| 6. | Breskens | 1 | 25 April 1999 | ||
| 7. | Breskens | 1 | 17 April 2000 | ||
| 8. | Breskens | 1 | 27 April 2001 | ||
| 9. | Breskens | 1 | 1 May 2004 | ||
| 10. | Breskens | 1 | 25 April 2007 | ||
| 11. | Breskens | 1 | 18 April 2010 | ||
| 12. | Breskens | 1 | 24 April 2010 | ||
| 13. | Breskens | 1 | 25 April 2010 | ||
| 14. | Breskens | 1 | 17 April 2019 | ||
| 15. | Breskens | 1 | 24 April 2019 | ||
