Phenology
| Year | Migration site | First | Migration site | Last | |||||
|---|---|---|---|---|---|---|---|---|---|
| 2021 | Manton/Martinsthorpe, Rutland (Leics, England) | 10 January | Manton/Martinsthorpe, Rutland (Leics, England) | 28 September | |||||
| 2020 | Manton/Martinsthorpe, Rutland (Leics, England) | 17 March | Manton/Martinsthorpe, Rutland (Leics, England) | 12 October | |||||
| 2019 | Manton/Martinsthorpe, Rutland (Leics, England) | 22 February | Manton/Martinsthorpe, Rutland (Leics, England) | 27 March |
