Phenology
| Year | Migration site | First | Migration site | Last | |||||
|---|---|---|---|---|---|---|---|---|---|
| 2021 |  |
VRS Klarenbeek | 18 October | |
VRS Klarenbeek | 18 October | |||
| 2020 | |
VRS Klarenbeek | 13 November | |
VRS Klarenbeek | 13 November | |||
| 2015 | |
VRS Klarenbeek | 5 November | |
VRS Klarenbeek | 5 November | |||
| 2014 | |
VRS Klarenbeek | 19 October | |
VRS Klarenbeek | 9 November |
