Phenology
| Year | Migration site | First | Migration site | Last | |||||
|---|---|---|---|---|---|---|---|---|---|
| 2022 | Manton/Martinsthorpe, Rutland (Leics, England) | 6 April | Manton/Martinsthorpe, Rutland (Leics, England) | 3 July | |||||
| 2021 | Manton/Martinsthorpe, Rutland (Leics, England) | 15 May | Manton/Martinsthorpe, Rutland (Leics, England) | 24 August | |||||
| 2020 | Manton/Martinsthorpe, Rutland (Leics, England) | 11 July | Manton/Martinsthorpe, Rutland (Leics, England) | 28 August | |||||
| 2019 | Manton/Martinsthorpe, Rutland (Leics, England) | 20 March | Manton/Martinsthorpe, Rutland (Leics, England) | 29 July |
