Phenology
| Year | Migration site | First | Migration site | Last | |||||
|---|---|---|---|---|---|---|---|---|---|
| 2022 | Graaf Visart (Brugge) | 26 April | Graaf Visart (Brugge) | 30 April | |||||
| 2020 | Graaf Visart (Brugge) | 7 May | Graaf Visart (Brugge) | 15 May | |||||
| 2019 | Graaf Visart (Brugge) | 14 October | Graaf Visart (Brugge) | 24 October | |||||
| 2018 | Graaf Visart (Brugge) | 1 May | Graaf Visart (Brugge) | 22 October | |||||
| 2017 | Graaf Visart (Brugge) | 1 May | Graaf Visart (Brugge) | 1 December | |||||
| 2016 | Graaf Visart (Brugge) | 18 September | Graaf Visart (Brugge) | 31 October | |||||
| 2015 | Graaf Visart (Brugge) | 23 August | Graaf Visart (Brugge) | 23 August | |||||
| 2014 | Graaf Visart (Brugge) | 19 February | Graaf Visart (Brugge) | 12 November | |||||
| 2013 | Graaf Visart (Brugge) | 25 April | Graaf Visart (Brugge) | 2 October | |||||
| 2012 | Graaf Visart (Brugge) | 13 September | Graaf Visart (Brugge) | 13 September | |||||
| 2011 | Graaf Visart (Brugge) | 2 November | Graaf Visart (Brugge) | 2 November | |||||
| 2010 | Graaf Visart (Brugge) | 21 May | Graaf Visart (Brugge) | 12 October | |||||
| 2009 | Graaf Visart (Brugge) | 7 April | Graaf Visart (Brugge) | 3 November | |||||
| 2008 | Graaf Visart (Brugge) | 17 April | Graaf Visart (Brugge) | 11 October | |||||
| 2007 | Graaf Visart (Brugge) | 21 April | Graaf Visart (Brugge) | 1 May | |||||
| 2006 | Graaf Visart (Brugge) | 3 November | Graaf Visart (Brugge) | 3 November |
