Phenology
| Year | Migration site | First | Migration site | Last | |||||
|---|---|---|---|---|---|---|---|---|---|
| 2020 | Gebrande Kamp, Middelaar | 25 July | Gebrande Kamp, Middelaar | 21 August | |||||
| 2019 | Gebrande Kamp, Middelaar | 20 April | Gebrande Kamp, Middelaar | 4 September | |||||
| 2018 | Gebrande Kamp, Middelaar | 7 August | Gebrande Kamp, Middelaar | 9 August | |||||
| 2009 | Gebrande Kamp, Middelaar | 21 August | Gebrande Kamp, Middelaar | 2 September | |||||
| 2008 | Gebrande Kamp, Middelaar | 6 August | Gebrande Kamp, Middelaar | 23 August | |||||
| 2007 | Gebrande Kamp, Middelaar | 24 August | Gebrande Kamp, Middelaar | 24 August | |||||
| 2004 | Gebrande Kamp, Middelaar | 16 April | Gebrande Kamp, Middelaar | 28 April |
