Phenology
| Year | Migration site | First | Migration site | Last | |||||
|---|---|---|---|---|---|---|---|---|---|
| 2021 |  |
VRS Klarenbeek | 7 June | |
VRS Klarenbeek | 18 October | |||
| 2020 | |
VRS Klarenbeek | 15 May | |
VRS Klarenbeek | 24 July | |||
| 2019 | |
VRS Klarenbeek | 7 May | |
VRS Klarenbeek | 5 July | |||
| 2018 | |
VRS Klarenbeek | 17 April | |
VRS Klarenbeek | 25 May | |||
| 2017 | |
VRS Klarenbeek | 28 April | |
VRS Klarenbeek | 7 August | |||
| 2016 | |
VRS Klarenbeek | 27 February | |
VRS Klarenbeek | 12 August | |||
| 2015 | |
VRS Klarenbeek | 29 May | |
VRS Klarenbeek | 30 October | |||
| 2014 | |
VRS Klarenbeek | 23 May | |
VRS Klarenbeek | 2 November | |||
| 2013 | |
VRS Klarenbeek | 15 September | |
VRS Klarenbeek | 25 October | |||
| 2012 | |
VRS Klarenbeek | 21 October | |
VRS Klarenbeek | 26 November |
