Phenology
| Year | Migration site | First | Migration site | Last | |||||
|---|---|---|---|---|---|---|---|---|---|
| 2021 | Pointe du Cap-Ferret (33) | 24 October | Pointe du Cap-Ferret (33) | 28 November | |||||
| 2020 | Pointe du Cap-Ferret (33) | 30 September | Pointe du Cap-Ferret (33) | 29 November | |||||
| 2019 | Pointe du Cap-Ferret (33) | 3 October | Pointe du Cap-Ferret (33) | 9 November | |||||
| 2018 | Pointe du Cap-Ferret (33) | 4 November | Pointe du Cap-Ferret (33) | 19 November |
