Phenology
| Year | Migration site | First | Migration site | Last | |||||
|---|---|---|---|---|---|---|---|---|---|
| 2020 | Gebrande Kamp, Middelaar | 31 july | Gebrande Kamp, Middelaar | 12 october | |||||
| 2019 | Gebrande Kamp, Middelaar | 22 april | Gebrande Kamp, Middelaar | 4 november | |||||
| 2018 | Gebrande Kamp, Middelaar | 7 august | Gebrande Kamp, Middelaar | 13 october | |||||
| 2010 | Gebrande Kamp, Middelaar | 25 september | Gebrande Kamp, Middelaar | 25 september | |||||
| 2009 | Gebrande Kamp, Middelaar | 21 august | Gebrande Kamp, Middelaar | 21 august | |||||
| 2008 | Gebrande Kamp, Middelaar | 17 march | Gebrande Kamp, Middelaar | 17 november | |||||
| 2007 | Gebrande Kamp, Middelaar | 14 september | Gebrande Kamp, Middelaar | 27 october | |||||
| 2004 | Gebrande Kamp, Middelaar | 17 march | Gebrande Kamp, Middelaar | 17 april |
