Phenology
| Year | Migration site | First | Migration site | Last | |||||
|---|---|---|---|---|---|---|---|---|---|
| 2021 | Gebrande Kamp, Middelaar | 28 September | Gebrande Kamp, Middelaar | 16 October | |||||
| 2020 | Gebrande Kamp, Middelaar | 31 July | Gebrande Kamp, Middelaar | 12 October | |||||
| 2019 | Gebrande Kamp, Middelaar | 22 April | Gebrande Kamp, Middelaar | 4 November | |||||
| 2018 | Gebrande Kamp, Middelaar | 7 August | Gebrande Kamp, Middelaar | 13 October | |||||
| 2010 | Gebrande Kamp, Middelaar | 25 September | Gebrande Kamp, Middelaar | 25 September | |||||
| 2009 | Gebrande Kamp, Middelaar | 21 August | Gebrande Kamp, Middelaar | 21 August | |||||
| 2008 | Gebrande Kamp, Middelaar | 17 March | Gebrande Kamp, Middelaar | 17 November | |||||
| 2007 | Gebrande Kamp, Middelaar | 14 September | Gebrande Kamp, Middelaar | 27 October | |||||
| 2004 | Gebrande Kamp, Middelaar | 17 March | Gebrande Kamp, Middelaar | 17 April |
