Record counts
| # | Migration site | Totals | Date | ||
|---|---|---|---|---|---|
| 1. | Cap Gris-Nez | 1 | 5 September 1958 | ||
| 2. | Cap Gris-Nez | 1 | 10 September 1960 | ||
| 3. | Cap Gris-Nez | 1 | 6 May 2005 | ||
| 4. | Cap Gris-Nez | 1 | 30 August 2005 | ||
| 5. | Cap Gris-Nez | 1 | 9 October 2005 | ||
| 6. | Cap Gris-Nez | 1 | 14 May 2010 | ||
| 7. | Cap Gris-Nez | 1 | 13 May 2014 | ||
| 8. | Cap Gris-Nez | 1 | 21 April 2015 | ||
| 9. | Cap Gris-Nez | 1 | 15 September 2017 | ||
| 10. | Cap Gris-Nez | 1 | 16 September 2018 | ||
| 11. | Cap Gris-Nez | 1 | 21 May 2020 | ||
