Phenology
| Year | Migration site | First | Migration site | Last | |||||
|---|---|---|---|---|---|---|---|---|---|
| 2021 | Gebrande Kamp, Middelaar | 22 July | Gebrande Kamp, Middelaar | 4 October | |||||
| 2020 | Gebrande Kamp, Middelaar | 29 August | Gebrande Kamp, Middelaar | 18 October | |||||
| 2019 | Gebrande Kamp, Middelaar | 12 August | Gebrande Kamp, Middelaar | 23 September | |||||
| 2018 | Gebrande Kamp, Middelaar | 24 August | Gebrande Kamp, Middelaar | 15 September | |||||
| 2009 | Gebrande Kamp, Middelaar | 1 September | Gebrande Kamp, Middelaar | 11 October | |||||
| 2008 | Gebrande Kamp, Middelaar | 14 August | Gebrande Kamp, Middelaar | 14 August |
