Phenology
| Year | Migration site | First | Migration site | Last | |||||
|---|---|---|---|---|---|---|---|---|---|
| 2021 |  |
VRS Klarenbeek | 19 July | |
VRS Klarenbeek | 13 September | |||
| 2020 | |
VRS Klarenbeek | 22 May | |
VRS Klarenbeek | 15 August | |||
| 2019 | |
VRS Klarenbeek | 29 June | |
VRS Klarenbeek | 31 August | |||
| 2018 | |
VRS Klarenbeek | 5 September | |
VRS Klarenbeek | 5 September | |||
| 2017 | |
VRS Klarenbeek | 27 June | |
VRS Klarenbeek | 27 June | |||
| 2016 | |
VRS Klarenbeek | 18 May | |
VRS Klarenbeek | 2 June | |||
| 2014 | |
VRS Klarenbeek | 23 May | |
VRS Klarenbeek | 23 May | |||
| 2013 | |
VRS Klarenbeek | 9 June | |
VRS Klarenbeek | 19 July |
