Phenology
| Year | Migration site | First | Migration site | Last | |||||
|---|---|---|---|---|---|---|---|---|---|
| 2016 |  |
VRS Klarenbeek | 13 June | |
VRS Klarenbeek | 13 June | |||
| 2015 | |
VRS Klarenbeek | 23 November | |
VRS Klarenbeek | 23 November | |||
| 2013 | |
VRS Klarenbeek | 18 November | |
VRS Klarenbeek | 18 November | |||
| 2012 | |
VRS Klarenbeek | 11 July | |
VRS Klarenbeek | 11 July |
