Phenology
| Year | Migration site | First | Migration site | Last | |||||
|---|---|---|---|---|---|---|---|---|---|
| 2021 | Manton/Martinsthorpe, Rutland (Leics, England) | 9 July | Manton/Martinsthorpe, Rutland (Leics, England) | 4 September | |||||
| 2020 | Manton/Martinsthorpe, Rutland (Leics, England) | 18 February | Manton/Martinsthorpe, Rutland (Leics, England) | 20 November | |||||
| 2019 | Manton/Martinsthorpe, Rutland (Leics, England) | 11 February | Manton/Martinsthorpe, Rutland (Leics, England) | 26 July | |||||
| 2018 | Manton/Martinsthorpe, Rutland (Leics, England) | 18 October | Manton/Martinsthorpe, Rutland (Leics, England) | 3 December |
