Phenology
| Year | Migration site | First | Migration site | Last | |||||
|---|---|---|---|---|---|---|---|---|---|
| 2021 | Graaf Visart (Brugge) | 8 February | Graaf Visart (Brugge) | 8 November | |||||
| 2020 | Graaf Visart (Brugge) | 5 May | Graaf Visart (Brugge) | 8 November | |||||
| 2019 | Graaf Visart (Brugge) | 31 March | Graaf Visart (Brugge) | 6 November | |||||
| 2018 | Graaf Visart (Brugge) | 22 May | Graaf Visart (Brugge) | 4 November | |||||
| 2017 | Graaf Visart (Brugge) | 12 March | Graaf Visart (Brugge) | 14 October | |||||
| 2016 | Graaf Visart (Brugge) | 13 March | Graaf Visart (Brugge) | 16 October | |||||
| 2015 | Graaf Visart (Brugge) | 20 September | Graaf Visart (Brugge) | 3 October | |||||
| 2014 | Graaf Visart (Brugge) | 9 October | Graaf Visart (Brugge) | 13 November | |||||
| 2013 | Graaf Visart (Brugge) | 19 January | Graaf Visart (Brugge) | 5 November | |||||
| 2012 | Graaf Visart (Brugge) | 5 February | Graaf Visart (Brugge) | 5 November | |||||
| 2011 | Graaf Visart (Brugge) | 7 March | Graaf Visart (Brugge) | 22 October | |||||
| 2010 | Graaf Visart (Brugge) | 20 September | Graaf Visart (Brugge) | 25 December | |||||
| 2009 | Graaf Visart (Brugge) | 6 September | Graaf Visart (Brugge) | 10 November | |||||
| 2008 | Graaf Visart (Brugge) | 27 February | Graaf Visart (Brugge) | 17 October | |||||
| 2007 | Graaf Visart (Brugge) | 3 November | Graaf Visart (Brugge) | 3 November |
