Phenology
| Year | Migration site | First | Migration site | Last | |||||
|---|---|---|---|---|---|---|---|---|---|
| 2021 | Manton, Rutland (Leics, England) | 6 February | Manton, Rutland (Leics, England) | 6 February | |||||
| 2020 | Manton, Rutland (Leics, England) | 13 March | Manton, Rutland (Leics, England) | 5 December | |||||
| 2019 | Manton, Rutland (Leics, England) | 24 January | Manton, Rutland (Leics, England) | 19 November | |||||
| 2018 | Manton, Rutland (Leics, England) | 1 October | Manton, Rutland (Leics, England) | 3 December |
