Phenology
| Year | Migration site | First | Migration site | Last | |||||
|---|---|---|---|---|---|---|---|---|---|
| 2021 | Gebrande Kamp, Middelaar | 17 February | Gebrande Kamp, Middelaar | 4 October | |||||
| 2020 | Gebrande Kamp, Middelaar | 18 October | Gebrande Kamp, Middelaar | 15 November | |||||
| 2019 | Gebrande Kamp, Middelaar | 20 April | Gebrande Kamp, Middelaar | 2 November | |||||
| 2018 | Gebrande Kamp, Middelaar | 28 August | Gebrande Kamp, Middelaar | 28 August | |||||
| 2010 | Gebrande Kamp, Middelaar | 26 September | Gebrande Kamp, Middelaar | 26 September | |||||
| 2009 | Gebrande Kamp, Middelaar | 18 September | Gebrande Kamp, Middelaar | 18 September |
