Phenology
| Year | Migration site | First | Migration site | Last | |||||
|---|---|---|---|---|---|---|---|---|---|
| 2021 | Breskens | 29 May | Breskens | 28 October | |||||
| 2019 | Breskens | 29 October | Breskens | 31 October | |||||
| 2018 | Breskens | 6 October | Breskens | 6 October | |||||
| 2014 | Breskens | 19 October | Breskens | 19 October | |||||
| 2013 | Breskens | 5 October | Breskens | 5 October |
