Phenology
| Year | Migration site | First | Migration site | Last | |||||
|---|---|---|---|---|---|---|---|---|---|
| 2021 | Gebrande Kamp, Middelaar | 20 August | Gebrande Kamp, Middelaar | 6 September | |||||
| 2020 | Gebrande Kamp, Middelaar | 12 April | Gebrande Kamp, Middelaar | 28 August | |||||
| 2019 | Gebrande Kamp, Middelaar | 12 August | Gebrande Kamp, Middelaar | 3 September | |||||
| 2018 | Gebrande Kamp, Middelaar | 28 August | Gebrande Kamp, Middelaar | 28 August | |||||
| 2009 | Gebrande Kamp, Middelaar | 2 September | Gebrande Kamp, Middelaar | 8 September | |||||
| 2008 | Gebrande Kamp, Middelaar | 10 September | Gebrande Kamp, Middelaar | 10 September |
