Phenology
Year | Migration site | First | Migration site | Last | |||||
---|---|---|---|---|---|---|---|---|---|
2021 | Winter Hill, Bolton (Gtr Manc/Lancs, England) | 8 October | Winter Hill, Bolton (Gtr Manc/Lancs, England) | 4 November | |||||
2020 | Winter Hill, Bolton (Gtr Manc/Lancs, England) | 18 September | Winter Hill, Bolton (Gtr Manc/Lancs, England) | 13 November | |||||
2019 | Winter Hill, Bolton (Gtr Manc/Lancs, England) | 14 September | Winter Hill, Bolton (Gtr Manc/Lancs, England) | 19 November | |||||
2018 | Winter Hill, Bolton (Gtr Manc/Lancs, England) | 27 September | Winter Hill, Bolton (Gtr Manc/Lancs, England) | 16 November | |||||
2017 | Winter Hill, Bolton (Gtr Manc/Lancs, England) | 14 September | Winter Hill, Bolton (Gtr Manc/Lancs, England) | 9 November | |||||
2016 | Winter Hill, Bolton (Gtr Manc/Lancs, England) | 28 September | Winter Hill, Bolton (Gtr Manc/Lancs, England) | 29 November | |||||
2015 | Winter Hill, Bolton (Gtr Manc/Lancs, England) | 6 October | Winter Hill, Bolton (Gtr Manc/Lancs, England) | 23 November | |||||
2014 | Winter Hill, Bolton (Gtr Manc/Lancs, England) | 8 October | Winter Hill, Bolton (Gtr Manc/Lancs, England) | 3 December | |||||
2013 | Winter Hill, Bolton (Gtr Manc/Lancs, England) | 1 October | Winter Hill, Bolton (Gtr Manc/Lancs, England) | 4 November | |||||
2012 | Winter Hill, Bolton (Gtr Manc/Lancs, England) | 6 October | Winter Hill, Bolton (Gtr Manc/Lancs, England) | 14 November | |||||
2011 | Winter Hill, Bolton (Gtr Manc/Lancs, England) | 18 August | Winter Hill, Bolton (Gtr Manc/Lancs, England) | 20 December | |||||
2010 | Winter Hill, Bolton (Gtr Manc/Lancs, England) | 6 October | Winter Hill, Bolton (Gtr Manc/Lancs, England) | 10 November |