Phenology
| Year | Migration site | First | Migration site | Last | |||||
|---|---|---|---|---|---|---|---|---|---|
| 2021 | Manton/Martinsthorpe, Rutland (Leics, England) | 21 July | Manton/Martinsthorpe, Rutland (Leics, England) | 21 August | |||||
| 2020 | Manton/Martinsthorpe, Rutland (Leics, England) | 16 August | Manton/Martinsthorpe, Rutland (Leics, England) | 13 October | |||||
| 2019 | Manton/Martinsthorpe, Rutland (Leics, England) | 24 March | Manton/Martinsthorpe, Rutland (Leics, England) | 3 December | |||||
| 2018 | Manton/Martinsthorpe, Rutland (Leics, England) | 1 November | Manton/Martinsthorpe, Rutland (Leics, England) | 1 November |
