Phenology
| Year | Migration site | First | Migration site | Last | |||||
|---|---|---|---|---|---|---|---|---|---|
| 2021 | Manton/Martinsthorpe, Rutland (Leics, England) | 13 August | Manton/Martinsthorpe, Rutland (Leics, England) | 1 October | |||||
| 2020 | Manton/Martinsthorpe, Rutland (Leics, England) | 14 February | Manton/Martinsthorpe, Rutland (Leics, England) | 5 December | |||||
| 2019 | Manton/Martinsthorpe, Rutland (Leics, England) | 11 February | Manton/Martinsthorpe, Rutland (Leics, England) | 19 November | |||||
| 2018 | Manton/Martinsthorpe, Rutland (Leics, England) | 20 September | Manton/Martinsthorpe, Rutland (Leics, England) | 3 December |
