Phenology
| Year | Migration site | First | Migration site | Last | |||||
|---|---|---|---|---|---|---|---|---|---|
| 2020 | Gebrande Kamp, Middelaar | 8 april | Gebrande Kamp, Middelaar | 17 october | |||||
| 2019 | Gebrande Kamp, Middelaar | 20 april | Gebrande Kamp, Middelaar | 28 october | |||||
| 2018 | Gebrande Kamp, Middelaar | 3 august | Gebrande Kamp, Middelaar | 14 november | |||||
| 2010 | Gebrande Kamp, Middelaar | 26 september | Gebrande Kamp, Middelaar | 26 september | |||||
| 2009 | Gebrande Kamp, Middelaar | 21 august | Gebrande Kamp, Middelaar | 8 november | |||||
| 2008 | Gebrande Kamp, Middelaar | 17 march | Gebrande Kamp, Middelaar | 7 november | |||||
| 2007 | Gebrande Kamp, Middelaar | 18 july | Gebrande Kamp, Middelaar | 28 november | |||||
| 2004 | Gebrande Kamp, Middelaar | 14 march | Gebrande Kamp, Middelaar | 30 april |
