Phenology
| Year | Migration site | First | Migration site | Last | |||||
|---|---|---|---|---|---|---|---|---|---|
| 2022 | Gebrande Kamp, Middelaar | 28 July | Gebrande Kamp, Middelaar | 28 July | |||||
| 2021 | Gebrande Kamp, Middelaar | 3 July | Gebrande Kamp, Middelaar | 24 August | |||||
| 2020 | Gebrande Kamp, Middelaar | 3 July | Gebrande Kamp, Middelaar | 10 August | |||||
| 2019 | Gebrande Kamp, Middelaar | 5 July | Gebrande Kamp, Middelaar | 4 September | |||||
| 2018 | Gebrande Kamp, Middelaar | 18 August | Gebrande Kamp, Middelaar | 18 August | |||||
| 2009 | Gebrande Kamp, Middelaar | 21 August | Gebrande Kamp, Middelaar | 11 September | |||||
| 2008 | Gebrande Kamp, Middelaar | 6 August | Gebrande Kamp, Middelaar | 9 September | |||||
| 2007 | Gebrande Kamp, Middelaar | 18 July | Gebrande Kamp, Middelaar | 30 August | |||||
| 2004 | Gebrande Kamp, Middelaar | 24 April | Gebrande Kamp, Middelaar | 28 April |
