Phenology
| Year | Migration site | First | Migration site | Last | |||||
|---|---|---|---|---|---|---|---|---|---|
| 2021 | Manton, Rutland (Leics, England) | 10 January | Manton, Rutland (Leics, England) | 25 February | |||||
| 2020 | Manton, Rutland (Leics, England) | 26 February | Manton, Rutland (Leics, England) | 26 December | |||||
| 2019 | Manton, Rutland (Leics, England) | 21 February | Manton, Rutland (Leics, England) | 3 December | |||||
| 2018 | Manton, Rutland (Leics, England) | 21 September | Manton, Rutland (Leics, England) | 13 December |
