Phenology
| Year | Migration site | First | Migration site | Last | |||||
|---|---|---|---|---|---|---|---|---|---|
| 2021 | Graaf Visart (Brugge) | 22 March | Graaf Visart (Brugge) | 28 March | |||||
| 2020 | Graaf Visart (Brugge) | 14 October | Graaf Visart (Brugge) | 14 October | |||||
| 2017 | Graaf Visart (Brugge) | 11 March | Graaf Visart (Brugge) | 11 March | |||||
| 2014 | Graaf Visart (Brugge) | 30 October | Graaf Visart (Brugge) | 30 October | |||||
| 2013 | Graaf Visart (Brugge) | 22 January | Graaf Visart (Brugge) | 30 September | |||||
| 2012 | Graaf Visart (Brugge) | 12 October | Graaf Visart (Brugge) | 26 October | |||||
| 2011 | Graaf Visart (Brugge) | 13 October | Graaf Visart (Brugge) | 13 October | |||||
| 2010 | Graaf Visart (Brugge) | 27 February | Graaf Visart (Brugge) | 1 December | |||||
| 2008 | Graaf Visart (Brugge) | 8 October | Graaf Visart (Brugge) | 8 October |
