Record counts
| # | Migration site | Totals | Date | ||
|---|---|---|---|---|---|
| 1. | Cap Gris-Nez | 2 | 24 July 2007 | ||
| 2. | Cap Gris-Nez | 2 | 29 June 2008 | ||
| 3. | Cap Gris-Nez | 1 | 2 October 1977 | ||
| 4. | Cap Gris-Nez | 1 | 11 August 2005 | ||
| 5. | Cap Gris-Nez | 1 | 8 July 2009 | ||
| 6. | Cap Gris-Nez | 1 | 14 May 2010 | ||
| 7. | Cap Gris-Nez | 1 | 16 July 2010 | ||
| 8. | Cap Gris-Nez | 1 | 19 September 2011 | ||
| 9. | Cap Gris-Nez | 1 | 29 September 2012 | ||
| 10. | Cap Gris-Nez | 1 | 8 May 2015 | ||
| 11. | Cap Gris-Nez | 1 | 10 August 2021 | ||
| 12. | Cap Gris-Nez | 1 | 3 May 2023 | ||
