Phenology
| Year | Migration site | First | Migration site | Last | |||||
|---|---|---|---|---|---|---|---|---|---|
| 2021 | Manton/Martinsthorpe, Rutland (Leics, England) | 11 August | Manton/Martinsthorpe, Rutland (Leics, England) | 11 August | |||||
| 2019 | Manton/Martinsthorpe, Rutland (Leics, England) | 12 February | Manton/Martinsthorpe, Rutland (Leics, England) | 7 April | |||||
| 2018 | Manton/Martinsthorpe, Rutland (Leics, England) | 20 November | Manton/Martinsthorpe, Rutland (Leics, England) | 20 November |
