Phenology
| Year | Migration site | First | Migration site | Last | |||||
|---|---|---|---|---|---|---|---|---|---|
| 2021 | Graaf Visart (Brugge) | 22 March | Graaf Visart (Brugge) | 22 March | |||||
| 2017 | Graaf Visart (Brugge) | 4 May | Graaf Visart (Brugge) | 4 May | |||||
| 2015 | Graaf Visart (Brugge) | 10 March | Graaf Visart (Brugge) | 5 April | |||||
| 2013 | Graaf Visart (Brugge) | 9 February | Graaf Visart (Brugge) | 7 May | |||||
| 2010 | Graaf Visart (Brugge) | 22 September | Graaf Visart (Brugge) | 22 September |
