Phenology
| Year | Migration site | First | Migration site | Last | |||||
|---|---|---|---|---|---|---|---|---|---|
| 2021 | Gebrande Kamp, Middelaar | 17 August | Gebrande Kamp, Middelaar | 2 November | |||||
| 2020 | Gebrande Kamp, Middelaar | 12 April | Gebrande Kamp, Middelaar | 26 October | |||||
| 2019 | Gebrande Kamp, Middelaar | 19 April | Gebrande Kamp, Middelaar | 10 October | |||||
| 2018 | Gebrande Kamp, Middelaar | 28 July | Gebrande Kamp, Middelaar | 6 October | |||||
| 2010 | Gebrande Kamp, Middelaar | 22 September | Gebrande Kamp, Middelaar | 26 September | |||||
| 2009 | Gebrande Kamp, Middelaar | 29 August | Gebrande Kamp, Middelaar | 8 September | |||||
| 2008 | Gebrande Kamp, Middelaar | 17 March | Gebrande Kamp, Middelaar | 8 October | |||||
| 2007 | Gebrande Kamp, Middelaar | 22 August | Gebrande Kamp, Middelaar | 28 September | |||||
| 2004 | Gebrande Kamp, Middelaar | 2 April | Gebrande Kamp, Middelaar | 24 April |
