Phenology
| Year | Migration site | First | Migration site | Last | |||||
|---|---|---|---|---|---|---|---|---|---|
| 2019 | Gebrande Kamp, Middelaar | 20 April | Gebrande Kamp, Middelaar | 20 April | |||||
| 2018 | Gebrande Kamp, Middelaar | 15 October | Gebrande Kamp, Middelaar | 15 October | |||||
| 2009 | Gebrande Kamp, Middelaar | 23 October | Gebrande Kamp, Middelaar | 25 October | |||||
| 2008 | Gebrande Kamp, Middelaar | 15 October | Gebrande Kamp, Middelaar | 16 November | |||||
| 2007 | Gebrande Kamp, Middelaar | 15 September | Gebrande Kamp, Middelaar | 15 September | |||||
| 2004 | Gebrande Kamp, Middelaar | 17 March | Gebrande Kamp, Middelaar | 14 April |
