Phenology
Year | Migration site | First | Migration site | Last | |||||
---|---|---|---|---|---|---|---|---|---|
2021 | Winter Hill, Bolton (Gtr Manc/Lancs, England) | 25 March | Winter Hill, Bolton (Gtr Manc/Lancs, England) | 20 October | |||||
2020 | Winter Hill, Bolton (Gtr Manc/Lancs, England) | 11 September | Winter Hill, Bolton (Gtr Manc/Lancs, England) | 18 October | |||||
2019 | Winter Hill, Bolton (Gtr Manc/Lancs, England) | 12 October | Winter Hill, Bolton (Gtr Manc/Lancs, England) | 3 November | |||||
2018 | Winter Hill, Bolton (Gtr Manc/Lancs, England) | 4 October | Winter Hill, Bolton (Gtr Manc/Lancs, England) | 25 October | |||||
2017 | Winter Hill, Bolton (Gtr Manc/Lancs, England) | 24 September | Winter Hill, Bolton (Gtr Manc/Lancs, England) | 11 November | |||||
2016 | Winter Hill, Bolton (Gtr Manc/Lancs, England) | 12 September | Winter Hill, Bolton (Gtr Manc/Lancs, England) | 31 October | |||||
2015 | Winter Hill, Bolton (Gtr Manc/Lancs, England) | 2 April | Winter Hill, Bolton (Gtr Manc/Lancs, England) | 2 November | |||||
2014 | Winter Hill, Bolton (Gtr Manc/Lancs, England) | 5 September | Winter Hill, Bolton (Gtr Manc/Lancs, England) | 25 November | |||||
2013 | Winter Hill, Bolton (Gtr Manc/Lancs, England) | 28 September | Winter Hill, Bolton (Gtr Manc/Lancs, England) | 5 October | |||||
2012 | Winter Hill, Bolton (Gtr Manc/Lancs, England) | 5 September | Winter Hill, Bolton (Gtr Manc/Lancs, England) | 2 November | |||||
2011 | Winter Hill, Bolton (Gtr Manc/Lancs, England) | 11 September | Winter Hill, Bolton (Gtr Manc/Lancs, England) | 19 October | |||||
2010 | Winter Hill, Bolton (Gtr Manc/Lancs, England) | 20 October | Winter Hill, Bolton (Gtr Manc/Lancs, England) | 16 November |