Phenology
| Year | Migration site | First | Migration site | Last | |||||
|---|---|---|---|---|---|---|---|---|---|
| 2020 | Gebrande Kamp, Middelaar | 29 August | Gebrande Kamp, Middelaar | 29 August | |||||
| 2008 | Gebrande Kamp, Middelaar | 7 September | Gebrande Kamp, Middelaar | 11 September | |||||
| 2004 | Gebrande Kamp, Middelaar | 25 April | Gebrande Kamp, Middelaar | 30 April |
