Phenology
| Year | Migration site | First | Migration site | Last | |||||
|---|---|---|---|---|---|---|---|---|---|
| 2022 | Manton/Martinsthorpe, Rutland (Leics, England) | 13 February | Manton/Martinsthorpe, Rutland (Leics, England) | 17 April | |||||
| 2021 | Manton/Martinsthorpe, Rutland (Leics, England) | 6 February | Manton/Martinsthorpe, Rutland (Leics, England) | 11 August | |||||
| 2020 | Manton/Martinsthorpe, Rutland (Leics, England) | 6 February | Manton/Martinsthorpe, Rutland (Leics, England) | 22 March | |||||
| 2019 | Manton/Martinsthorpe, Rutland (Leics, England) | 22 February | Manton/Martinsthorpe, Rutland (Leics, England) | 22 July |
