Phenology
| Year | Migration site | First | Migration site | Last | |||||
|---|---|---|---|---|---|---|---|---|---|
| 2018 | Graaf Visart (Brugge) | 15 october | Graaf Visart (Brugge) | 17 november | |||||
| 2017 | Graaf Visart (Brugge) | 11 march | Graaf Visart (Brugge) | 12 december | |||||
| 2016 | Graaf Visart (Brugge) | 13 april | Graaf Visart (Brugge) | 4 october | |||||
| 2015 | Graaf Visart (Brugge) | 4 march | Graaf Visart (Brugge) | 29 september | |||||
| 2014 | Graaf Visart (Brugge) | 5 march | Graaf Visart (Brugge) | 29 december | |||||
| 2013 | Graaf Visart (Brugge) | 16 january | Graaf Visart (Brugge) | 15 november | |||||
| 2012 | Graaf Visart (Brugge) | 3 february | Graaf Visart (Brugge) | 11 december | |||||
| 2011 | Graaf Visart (Brugge) | 20 january | Graaf Visart (Brugge) | 19 december | |||||
| 2010 | Graaf Visart (Brugge) | 4 march | Graaf Visart (Brugge) | 25 december | |||||
| 2009 | Graaf Visart (Brugge) | 9 october | Graaf Visart (Brugge) | 19 november | |||||
| 2008 | Graaf Visart (Brugge) | 6 may | Graaf Visart (Brugge) | 12 november | |||||
| 2007 | Graaf Visart (Brugge) | 30 september | Graaf Visart (Brugge) | 8 november | |||||
| 2006 | Graaf Visart (Brugge) | 3 november | Graaf Visart (Brugge) | 17 november |
