Phenology
| Year | Migration site | First | Migration site | Last | |||||
|---|---|---|---|---|---|---|---|---|---|
| 2018 | Graaf Visart (Brugge) | 21 october | Graaf Visart (Brugge) | 23 november | |||||
| 2017 | Graaf Visart (Brugge) | 16 october | Graaf Visart (Brugge) | 30 october | |||||
| 2016 | Graaf Visart (Brugge) | 12 april | Graaf Visart (Brugge) | 12 april | |||||
| 2015 | Graaf Visart (Brugge) | 8 october | Graaf Visart (Brugge) | 10 october | |||||
| 2014 | Graaf Visart (Brugge) | 19 february | Graaf Visart (Brugge) | 30 december | |||||
| 2013 | Graaf Visart (Brugge) | 3 october | Graaf Visart (Brugge) | 3 october | |||||
| 2012 | Graaf Visart (Brugge) | 7 september | Graaf Visart (Brugge) | 8 november | |||||
| 2011 | Graaf Visart (Brugge) | 3 october | Graaf Visart (Brugge) | 12 november | |||||
| 2010 | Graaf Visart (Brugge) | 16 march | Graaf Visart (Brugge) | 19 november | |||||
| 2009 | Graaf Visart (Brugge) | 17 march | Graaf Visart (Brugge) | 20 november | |||||
| 2008 | Graaf Visart (Brugge) | 14 march | Graaf Visart (Brugge) | 8 november | |||||
| 2007 | Graaf Visart (Brugge) | 22 september | Graaf Visart (Brugge) | 22 november |
