Phenology
| Year | Migration site | First | Migration site | Last | |||||
|---|---|---|---|---|---|---|---|---|---|
| 2021 | Gebrande Kamp, Middelaar | 2 October | Gebrande Kamp, Middelaar | 2 October | |||||
| 2020 | Gebrande Kamp, Middelaar | 13 October | Gebrande Kamp, Middelaar | 31 October | |||||
| 2019 | Gebrande Kamp, Middelaar | 26 October | Gebrande Kamp, Middelaar | 26 October | |||||
| 2018 | Gebrande Kamp, Middelaar | 25 September | Gebrande Kamp, Middelaar | 25 September | |||||
| 2009 | Gebrande Kamp, Middelaar | 22 September | Gebrande Kamp, Middelaar | 22 September |
