Phenology
| Year | Migration site | First | Migration site | Last | |||||
|---|---|---|---|---|---|---|---|---|---|
| 2020 | Graaf Visart (Brugge) | 17 March | Graaf Visart (Brugge) | 17 March | |||||
| 2019 | Graaf Visart (Brugge) | 20 April | Graaf Visart (Brugge) | 20 April | |||||
| 2016 | Graaf Visart (Brugge) | 21 April | Graaf Visart (Brugge) | 11 May | |||||
| 2015 | Graaf Visart (Brugge) | 9 September | Graaf Visart (Brugge) | 9 September | |||||
| 2014 | Graaf Visart (Brugge) | 21 April | Graaf Visart (Brugge) | 21 April | |||||
| 2013 | Graaf Visart (Brugge) | 27 April | Graaf Visart (Brugge) | 27 April | |||||
| 2012 | Graaf Visart (Brugge) | 7 May | Graaf Visart (Brugge) | 25 May | |||||
| 2011 | Graaf Visart (Brugge) | 4 May | Graaf Visart (Brugge) | 4 May | |||||
| 2008 | Graaf Visart (Brugge) | 18 April | Graaf Visart (Brugge) | 11 September | |||||
| 2007 | Graaf Visart (Brugge) | 8 April | Graaf Visart (Brugge) | 20 October |
