Phenology
| Year | Migration site | First | Migration site | Last | |||||
|---|---|---|---|---|---|---|---|---|---|
| 2020 | Cap Gris-Nez | 20 february | Cap Gris-Nez | 14 october | |||||
| 2019 | Cap Gris-Nez | 12 february | Cap Gris-Nez | 25 december | |||||
| 2018 | Cap Gris-Nez | 25 march | Cap Gris-Nez | 14 december | |||||
| 2017 | Cap Gris-Nez | 24 february | Cap Gris-Nez | 17 december | |||||
| 2016 | Cap Gris-Nez | 15 january | Cap Gris-Nez | 27 november | |||||
| 2015 | Cap Gris-Nez | 22 february | Cap Gris-Nez | 25 november | |||||
| 2014 | Cap Gris-Nez | 14 march | Cap Gris-Nez | 21 december | |||||
| 2013 | Cap Gris-Nez | 6 january | Cap Gris-Nez | 15 december | |||||
| 2012 | Cap Gris-Nez | 8 january | Cap Gris-Nez | 30 december | |||||
| 2011 | Cap Gris-Nez | 16 january | Cap Gris-Nez | 20 december | |||||
| 2010 | Cap Gris-Nez | 2 january | Cap Gris-Nez | 26 december | |||||
| 2009 | Cap Gris-Nez | 28 february | Cap Gris-Nez | 29 november | |||||
| 2008 | Cap Gris-Nez | 6 january | Cap Gris-Nez | 14 december | |||||
| 2007 | Cap Gris-Nez | 2 january | Cap Gris-Nez | 16 december | |||||
| 2006 | Cap Gris-Nez | 7 january | Cap Gris-Nez | 12 december | |||||
| 2005 | Cap Gris-Nez | 13 february | Cap Gris-Nez | 22 december | |||||
| 2004 | Cap Gris-Nez | 1 november | Cap Gris-Nez | 1 november | |||||
| 1987 | Cap Gris-Nez | 19 october | Cap Gris-Nez | 22 october | |||||
| 1986 | Cap Gris-Nez | 21 october | Cap Gris-Nez | 24 october | |||||
| 1982 | Cap Gris-Nez | 10 april | Cap Gris-Nez | 10 april | |||||
| 1978 | Cap Gris-Nez | 30 march | Cap Gris-Nez | 1 october | |||||
| 1977 | Cap Gris-Nez | 1 october | Cap Gris-Nez | 19 november | |||||
| 1956 | Cap Gris-Nez | 24 september | Cap Gris-Nez | 7 october |
