Phenology
| Year | Migration site | First | Migration site | Last | |||||
|---|---|---|---|---|---|---|---|---|---|
| 2020 | Graaf Visart (Brugge) | 14 march | Graaf Visart (Brugge) | 6 may | |||||
| 2019 | Graaf Visart (Brugge) | 23 january | Graaf Visart (Brugge) | 8 november | |||||
| 2018 | Graaf Visart (Brugge) | 6 march | Graaf Visart (Brugge) | 22 november | |||||
| 2017 | Graaf Visart (Brugge) | 11 march | Graaf Visart (Brugge) | 19 november | |||||
| 2016 | Graaf Visart (Brugge) | 12 march | Graaf Visart (Brugge) | 1 november | |||||
| 2015 | Graaf Visart (Brugge) | 19 february | Graaf Visart (Brugge) | 10 october | |||||
| 2014 | Graaf Visart (Brugge) | 19 february | Graaf Visart (Brugge) | 13 november | |||||
| 2013 | Graaf Visart (Brugge) | 17 january | Graaf Visart (Brugge) | 13 november | |||||
| 2012 | Graaf Visart (Brugge) | 8 march | Graaf Visart (Brugge) | 11 november | |||||
| 2011 | Graaf Visart (Brugge) | 22 february | Graaf Visart (Brugge) | 5 november | |||||
| 2010 | Graaf Visart (Brugge) | 15 february | Graaf Visart (Brugge) | 22 december | |||||
| 2009 | Graaf Visart (Brugge) | 2 march | Graaf Visart (Brugge) | 6 november | |||||
| 2008 | Graaf Visart (Brugge) | 27 february | Graaf Visart (Brugge) | 8 november | |||||
| 2007 | Graaf Visart (Brugge) | 30 september | Graaf Visart (Brugge) | 15 november | |||||
| 2006 | Graaf Visart (Brugge) | 27 october | Graaf Visart (Brugge) | 10 november |
