Phenology
| Year | Migration site | First | Migration site | Last | |||||
|---|---|---|---|---|---|---|---|---|---|
| 2020 | Gebrande Kamp, Middelaar | 7 April | Gebrande Kamp, Middelaar | 8 April | |||||
| 2019 | Gebrande Kamp, Middelaar | 19 April | Gebrande Kamp, Middelaar | 19 August | |||||
| 2018 | Gebrande Kamp, Middelaar | 31 August | Gebrande Kamp, Middelaar | 31 August | |||||
| 2008 | Gebrande Kamp, Middelaar | 29 March | Gebrande Kamp, Middelaar | 22 July | |||||
| 2007 | Gebrande Kamp, Middelaar | 30 August | Gebrande Kamp, Middelaar | 30 August | |||||
| 2004 | Gebrande Kamp, Middelaar | 18 March | Gebrande Kamp, Middelaar | 5 May |
