Phenology
| Year | Migration site | First | Migration site | Last | |||||
|---|---|---|---|---|---|---|---|---|---|
| 2021 | Manton/Martinsthorpe, Rutland (Leics, England) | 6 February | Manton/Martinsthorpe, Rutland (Leics, England) | 22 September | |||||
| 2020 | Manton/Martinsthorpe, Rutland (Leics, England) | 22 August | Manton/Martinsthorpe, Rutland (Leics, England) | 17 September | |||||
| 2018 | Manton/Martinsthorpe, Rutland (Leics, England) | 10 November | Manton/Martinsthorpe, Rutland (Leics, England) | 10 November |
