Phenology
| Year | Migration site | First | Migration site | Last | |||||
|---|---|---|---|---|---|---|---|---|---|
| 2021 | Manton/Martinsthorpe, Rutland (Leics, England) | 15 May | Manton/Martinsthorpe, Rutland (Leics, England) | 16 October | |||||
| 2020 | Manton/Martinsthorpe, Rutland (Leics, England) | 26 February | Manton/Martinsthorpe, Rutland (Leics, England) | 24 December | |||||
| 2019 | Manton/Martinsthorpe, Rutland (Leics, England) | 24 January | Manton/Martinsthorpe, Rutland (Leics, England) | 15 November | |||||
| 2018 | Manton/Martinsthorpe, Rutland (Leics, England) | 19 September | Manton/Martinsthorpe, Rutland (Leics, England) | 3 December |
