Phenology
| Year | Migration site | First | Migration site | Last | |||||
|---|---|---|---|---|---|---|---|---|---|
| 2019 | Graaf Visart (Brugge) | 16 april | Graaf Visart (Brugge) | 16 april | |||||
| 2018 | Graaf Visart (Brugge) | 22 may | Graaf Visart (Brugge) | 17 november | |||||
| 2017 | Graaf Visart (Brugge) | 17 september | Graaf Visart (Brugge) | 12 december | |||||
| 2016 | Graaf Visart (Brugge) | 19 september | Graaf Visart (Brugge) | 4 october | |||||
| 2015 | Graaf Visart (Brugge) | 18 february | Graaf Visart (Brugge) | 19 september | |||||
| 2014 | Graaf Visart (Brugge) | 25 february | Graaf Visart (Brugge) | 11 november | |||||
| 2013 | Graaf Visart (Brugge) | 22 january | Graaf Visart (Brugge) | 13 november | |||||
| 2012 | Graaf Visart (Brugge) | 6 february | Graaf Visart (Brugge) | 6 november | |||||
| 2011 | Graaf Visart (Brugge) | 11 march | Graaf Visart (Brugge) | 28 october | |||||
| 2010 | Graaf Visart (Brugge) | 9 october | Graaf Visart (Brugge) | 25 december | |||||
| 2009 | Graaf Visart (Brugge) | 18 september | Graaf Visart (Brugge) | 2 october | |||||
| 2008 | Graaf Visart (Brugge) | 22 april | Graaf Visart (Brugge) | 2 november | |||||
| 2007 | Graaf Visart (Brugge) | 30 september | Graaf Visart (Brugge) | 30 september |
