Phenology
| Year | Migration site | First | Migration site | Last | |||||
|---|---|---|---|---|---|---|---|---|---|
| 2022 | Graaf Visart (Brugge) | 11 April | Graaf Visart (Brugge) | 6 May | |||||
| 2021 | Graaf Visart (Brugge) | 17 February | Graaf Visart (Brugge) | 3 November | |||||
| 2020 | Graaf Visart (Brugge) | 24 March | Graaf Visart (Brugge) | 5 November | |||||
| 2019 | Graaf Visart (Brugge) | 26 February | Graaf Visart (Brugge) | 30 October | |||||
| 2018 | Graaf Visart (Brugge) | 11 March | Graaf Visart (Brugge) | 8 October | |||||
| 2017 | Graaf Visart (Brugge) | 28 March | Graaf Visart (Brugge) | 27 October | |||||
| 2016 | Graaf Visart (Brugge) | 10 March | Graaf Visart (Brugge) | 18 September | |||||
| 2015 | Graaf Visart (Brugge) | 4 May | Graaf Visart (Brugge) | 29 August | |||||
| 2013 | Graaf Visart (Brugge) | 6 March | Graaf Visart (Brugge) | 16 September | |||||
| 2012 | Graaf Visart (Brugge) | 14 April | Graaf Visart (Brugge) | 9 October | |||||
| 2011 | Graaf Visart (Brugge) | 7 March | Graaf Visart (Brugge) | 8 May | |||||
| 2010 | Graaf Visart (Brugge) | 20 February | Graaf Visart (Brugge) | 29 April | |||||
| 2009 | Graaf Visart (Brugge) | 5 March | Graaf Visart (Brugge) | 31 July | |||||
| 2008 | Graaf Visart (Brugge) | 16 March | Graaf Visart (Brugge) | 13 September | |||||
| 2007 | Graaf Visart (Brugge) | 1 May | Graaf Visart (Brugge) | 1 May |
