Phenology
| Year | Migration site | First | Migration site | Last | |||||
|---|---|---|---|---|---|---|---|---|---|
| 2021 | Manton/Martinsthorpe, Rutland (Leics, England) | 17 July | Manton/Martinsthorpe, Rutland (Leics, England) | 17 July | |||||
| 2020 | Manton/Martinsthorpe, Rutland (Leics, England) | 11 July | Manton/Martinsthorpe, Rutland (Leics, England) | 9 November | |||||
| 2019 | Manton/Martinsthorpe, Rutland (Leics, England) | 20 March | Manton/Martinsthorpe, Rutland (Leics, England) | 28 March | |||||
| 2018 | Manton/Martinsthorpe, Rutland (Leics, England) | 19 October | Manton/Martinsthorpe, Rutland (Leics, England) | 17 November |
