Phenology
| Year | Migration site | First | Migration site | Last | |||||
|---|---|---|---|---|---|---|---|---|---|
| 2021 | Pointe du Cap-Ferret (33) | 29 October | Pointe du Cap-Ferret (33) | 29 October | |||||
| 2020 | Pointe du Cap-Ferret (33) | 28 September | Pointe du Cap-Ferret (33) | 12 October | |||||
| 2019 | Pointe du Cap-Ferret (33) | 5 October | Pointe du Cap-Ferret (33) | 5 October |
