Phenology
| Year | Migration site | First | Migration site | Last | |||||
|---|---|---|---|---|---|---|---|---|---|
| 2021 |  |
VRS Klarenbeek | 19 June | |
VRS Klarenbeek | 19 June | |||
| 2020 | |
VRS Klarenbeek | 6 April | |
VRS Klarenbeek | 23 June | |||
| 2019 | |
VRS Klarenbeek | 14 May | |
VRS Klarenbeek | 21 June | |||
| 2017 | |
VRS Klarenbeek | 8 July | |
VRS Klarenbeek | 8 July | |||
| 2016 | |
VRS Klarenbeek | 18 April | |
VRS Klarenbeek | 18 May | |||
| 2015 | |
VRS Klarenbeek | 2 May | |
VRS Klarenbeek | 5 June | |||
| 2013 | |
VRS Klarenbeek | 24 April | |
VRS Klarenbeek | 18 November | |||
| 2012 | |
VRS Klarenbeek | 15 March | |
VRS Klarenbeek | 1 May |
