Phenology
Year | Migration site | First | Migration site | Last | |||||
---|---|---|---|---|---|---|---|---|---|
2021 | Winter Hill, Bolton (Gtr Manc/Lancs, England) | 7 October | Winter Hill, Bolton (Gtr Manc/Lancs, England) | 23 October | |||||
2020 | Winter Hill, Bolton (Gtr Manc/Lancs, England) | 11 September | Winter Hill, Bolton (Gtr Manc/Lancs, England) | 20 September | |||||
2019 | Winter Hill, Bolton (Gtr Manc/Lancs, England) | 17 September | Winter Hill, Bolton (Gtr Manc/Lancs, England) | 14 October | |||||
2018 | Winter Hill, Bolton (Gtr Manc/Lancs, England) | 22 September | Winter Hill, Bolton (Gtr Manc/Lancs, England) | 15 October | |||||
2017 | Winter Hill, Bolton (Gtr Manc/Lancs, England) | 29 October | Winter Hill, Bolton (Gtr Manc/Lancs, England) | 29 October | |||||
2016 | Winter Hill, Bolton (Gtr Manc/Lancs, England) | 5 August | Winter Hill, Bolton (Gtr Manc/Lancs, England) | 4 October | |||||
2015 | Winter Hill, Bolton (Gtr Manc/Lancs, England) | 17 September | Winter Hill, Bolton (Gtr Manc/Lancs, England) | 27 October | |||||
2014 | Winter Hill, Bolton (Gtr Manc/Lancs, England) | 16 September | Winter Hill, Bolton (Gtr Manc/Lancs, England) | 5 October | |||||
2013 | Winter Hill, Bolton (Gtr Manc/Lancs, England) | 5 October | Winter Hill, Bolton (Gtr Manc/Lancs, England) | 5 October | |||||
2012 | Winter Hill, Bolton (Gtr Manc/Lancs, England) | 22 August | Winter Hill, Bolton (Gtr Manc/Lancs, England) | 25 October | |||||
2011 | Winter Hill, Bolton (Gtr Manc/Lancs, England) | 13 October | Winter Hill, Bolton (Gtr Manc/Lancs, England) | 21 October | |||||
2010 | Winter Hill, Bolton (Gtr Manc/Lancs, England) | 21 August | Winter Hill, Bolton (Gtr Manc/Lancs, England) | 27 October | |||||
2009 | Winter Hill, Bolton (Gtr Manc/Lancs, England) | 16 October | Winter Hill, Bolton (Gtr Manc/Lancs, England) | 16 October |