Phenology
| Year | Migration site | First | Migration site | Last | |||||
|---|---|---|---|---|---|---|---|---|---|
| 2021 | Gebrande Kamp, Middelaar | 27 September | Gebrande Kamp, Middelaar | 27 September | |||||
| 2020 | Gebrande Kamp, Middelaar | 28 August | Gebrande Kamp, Middelaar | 7 November | |||||
| 2019 | Gebrande Kamp, Middelaar | 13 October | Gebrande Kamp, Middelaar | 13 October | |||||
| 2018 | Gebrande Kamp, Middelaar | 31 August | Gebrande Kamp, Middelaar | 5 November | |||||
| 2008 | Gebrande Kamp, Middelaar | 13 September | Gebrande Kamp, Middelaar | 7 November | |||||
| 2007 | Gebrande Kamp, Middelaar | 22 August | Gebrande Kamp, Middelaar | 13 November | |||||
| 2004 | Gebrande Kamp, Middelaar | 13 March | Gebrande Kamp, Middelaar | 15 April |
