Phenology
| Year | Migration site | First | Migration site | Last | |||||
|---|---|---|---|---|---|---|---|---|---|
| 2021 |  |
VRS Klarenbeek | 19 June | |
VRS Klarenbeek | 13 September | |||
| 2020 | |
VRS Klarenbeek | 22 May | |
VRS Klarenbeek | 22 May | |||
| 2019 | |
VRS Klarenbeek | 9 June | |
VRS Klarenbeek | 2 August | |||
| 2018 | |
VRS Klarenbeek | 4 May | |
VRS Klarenbeek | 14 July | |||
| 2017 | |
VRS Klarenbeek | 2 April | |
VRS Klarenbeek | 7 August | |||
| 2016 | |
VRS Klarenbeek | 16 April | |
VRS Klarenbeek | 12 August | |||
| 2014 | |
VRS Klarenbeek | 5 May | |
VRS Klarenbeek | 19 October | |||
| 2013 | |
VRS Klarenbeek | 24 April | |
VRS Klarenbeek | 19 August | |||
| 2012 | |
VRS Klarenbeek | 25 April | |
VRS Klarenbeek | 5 November |
