Phenology
| Year | Migration site | First | Migration site | Last | |||||
|---|---|---|---|---|---|---|---|---|---|
| 2021 | Gebrande Kamp, Middelaar | 3 July | Gebrande Kamp, Middelaar | 23 August | |||||
| 2020 | Gebrande Kamp, Middelaar | 27 April | Gebrande Kamp, Middelaar | 5 August | |||||
| 2019 | Gebrande Kamp, Middelaar | 20 April | Gebrande Kamp, Middelaar | 19 August | |||||
| 2018 | Gebrande Kamp, Middelaar | 9 July | Gebrande Kamp, Middelaar | 30 August | |||||
| 2008 | Gebrande Kamp, Middelaar | 26 April | Gebrande Kamp, Middelaar | 18 August | |||||
| 2007 | Gebrande Kamp, Middelaar | 8 July | Gebrande Kamp, Middelaar | 3 August | |||||
| 2004 | Gebrande Kamp, Middelaar | 23 April | Gebrande Kamp, Middelaar | 24 April |
