Phenology
| Year | Migration site | First | Migration site | Last | |||||
|---|---|---|---|---|---|---|---|---|---|
| 2020 | Terschelling, Paal 18 | 17 October | Terschelling, Paal 18 | 17 October | |||||
| 2019 | Terschelling, Paal 18 | 29 January | Terschelling, Paal 18 | 12 October | |||||
| 2015 | Terschelling, Paal 18 | 26 September | Terschelling, Paal 18 | 26 September | |||||
| 2013 | Terschelling, Paal 18 | 20 August | Terschelling, Paal 18 | 9 September | |||||
| 2010 | Terschelling, Paal 18 | 24 July | Terschelling, Paal 18 | 24 July | |||||
| 2009 | Terschelling, Paal 18 | 5 September | Terschelling, Paal 18 | 6 September | |||||
| 2008 | Terschelling, Paal 18 | 20 September | Terschelling, Paal 18 | 20 September | |||||
| 2007 | Terschelling, Paal 18 | 11 October | Terschelling, Paal 18 | 11 October | |||||
| 2002 | Terschelling, Paal 18 | 15 September | Terschelling, Paal 18 | 15 September |
