Phenology
| Year | Migration site | First | Migration site | Last | |||||
|---|---|---|---|---|---|---|---|---|---|
| 2021 | Graaf Visart (Brugge) | 9 April | Graaf Visart (Brugge) | 23 April | |||||
| 2020 | Graaf Visart (Brugge) | 11 October | Graaf Visart (Brugge) | 11 October | |||||
| 2019 | Graaf Visart (Brugge) | 19 April | Graaf Visart (Brugge) | 20 April | |||||
| 2014 | Graaf Visart (Brugge) | 21 April | Graaf Visart (Brugge) | 19 October | |||||
| 2012 | Graaf Visart (Brugge) | 14 October | Graaf Visart (Brugge) | 14 October | |||||
| 2011 | Graaf Visart (Brugge) | 10 April | Graaf Visart (Brugge) | 10 April | |||||
| 2007 | Graaf Visart (Brugge) | 1 May | Graaf Visart (Brugge) | 1 May |
