Phenology
| Year | Migration site | First | Migration site | Last | |||||
|---|---|---|---|---|---|---|---|---|---|
| 2021 | Gebrande Kamp, Middelaar | 28 July | Gebrande Kamp, Middelaar | 25 October | |||||
| 2020 | Gebrande Kamp, Middelaar | 10 April | Gebrande Kamp, Middelaar | 13 October | |||||
| 2019 | Gebrande Kamp, Middelaar | 26 April | Gebrande Kamp, Middelaar | 23 October | |||||
| 2018 | Gebrande Kamp, Middelaar | 23 September | Gebrande Kamp, Middelaar | 2 November | |||||
| 2009 | Gebrande Kamp, Middelaar | 9 October | Gebrande Kamp, Middelaar | 9 October | |||||
| 2008 | Gebrande Kamp, Middelaar | 10 September | Gebrande Kamp, Middelaar | 26 October | |||||
| 2007 | Gebrande Kamp, Middelaar | 14 July | Gebrande Kamp, Middelaar | 16 November |
