Phenology
| Year | Migration site | First | Migration site | Last | |||||
|---|---|---|---|---|---|---|---|---|---|
| 2022 | Gebrande Kamp, Middelaar | 22 August | Gebrande Kamp, Middelaar | 3 September | |||||
| 2021 | Gebrande Kamp, Middelaar | 24 August | Gebrande Kamp, Middelaar | 16 October | |||||
| 2020 | Gebrande Kamp, Middelaar | 30 August | Gebrande Kamp, Middelaar | 13 October | |||||
| 2019 | Gebrande Kamp, Middelaar | 24 August | Gebrande Kamp, Middelaar | 30 September | |||||
| 2018 | Gebrande Kamp, Middelaar | 3 August | Gebrande Kamp, Middelaar | 8 September | |||||
| 2010 | Gebrande Kamp, Middelaar | 22 September | Gebrande Kamp, Middelaar | 22 September | |||||
| 2009 | Gebrande Kamp, Middelaar | 8 September | Gebrande Kamp, Middelaar | 11 September | |||||
| 2008 | Gebrande Kamp, Middelaar | 7 September | Gebrande Kamp, Middelaar | 8 October | |||||
| 2007 | Gebrande Kamp, Middelaar | 25 August | Gebrande Kamp, Middelaar | 14 September |
