Phenology
| Year | Migration site | First | Migration site | Last | |||||
|---|---|---|---|---|---|---|---|---|---|
| 2020 | Graaf Visart (Brugge) | 17 march | Graaf Visart (Brugge) | 25 april | |||||
| 2019 | Graaf Visart (Brugge) | 5 april | Graaf Visart (Brugge) | 30 october | |||||
| 2018 | Graaf Visart (Brugge) | 9 march | Graaf Visart (Brugge) | 17 november | |||||
| 2017 | Graaf Visart (Brugge) | 29 march | Graaf Visart (Brugge) | 1 december | |||||
| 2016 | Graaf Visart (Brugge) | 6 october | Graaf Visart (Brugge) | 3 november | |||||
| 2015 | Graaf Visart (Brugge) | 23 march | Graaf Visart (Brugge) | 1 october | |||||
| 2014 | Graaf Visart (Brugge) | 5 october | Graaf Visart (Brugge) | 12 november | |||||
| 2013 | Graaf Visart (Brugge) | 6 march | Graaf Visart (Brugge) | 15 november | |||||
| 2012 | Graaf Visart (Brugge) | 3 february | Graaf Visart (Brugge) | 21 october | |||||
| 2011 | Graaf Visart (Brugge) | 2 may | Graaf Visart (Brugge) | 5 november | |||||
| 2010 | Graaf Visart (Brugge) | 17 march | Graaf Visart (Brugge) | 1 december | |||||
| 2009 | Graaf Visart (Brugge) | 9 october | Graaf Visart (Brugge) | 28 october | |||||
| 2008 | Graaf Visart (Brugge) | 13 september | Graaf Visart (Brugge) | 16 september | |||||
| 2007 | Graaf Visart (Brugge) | 9 october | Graaf Visart (Brugge) | 9 october |
