Phenology
| Year | Migration site | First | Migration site | Last | |||||
|---|---|---|---|---|---|---|---|---|---|
| 2021 | Gebrande Kamp, Middelaar | 19 September | Gebrande Kamp, Middelaar | 19 September | |||||
| 2020 | Gebrande Kamp, Middelaar | 15 August | Gebrande Kamp, Middelaar | 13 September | |||||
| 2018 | Gebrande Kamp, Middelaar | 31 August | Gebrande Kamp, Middelaar | 31 August | |||||
| 2009 | Gebrande Kamp, Middelaar | 8 September | Gebrande Kamp, Middelaar | 8 September | |||||
| 2008 | Gebrande Kamp, Middelaar | 9 September | Gebrande Kamp, Middelaar | 18 September |
