Phenology
Year | Migration site | First | Migration site | Last | |||||
---|---|---|---|---|---|---|---|---|---|
2021 | Winter Hill, Bolton (Gtr Manc/Lancs, England) | 24 September | Winter Hill, Bolton (Gtr Manc/Lancs, England) | 6 November | |||||
2020 | Winter Hill, Bolton (Gtr Manc/Lancs, England) | 11 September | Winter Hill, Bolton (Gtr Manc/Lancs, England) | 18 November | |||||
2019 | Winter Hill, Bolton (Gtr Manc/Lancs, England) | 20 September | Winter Hill, Bolton (Gtr Manc/Lancs, England) | 2 December | |||||
2018 | Winter Hill, Bolton (Gtr Manc/Lancs, England) | 17 September | Winter Hill, Bolton (Gtr Manc/Lancs, England) | 26 November | |||||
2017 | Winter Hill, Bolton (Gtr Manc/Lancs, England) | 13 March | Winter Hill, Bolton (Gtr Manc/Lancs, England) | 8 November | |||||
2016 | Winter Hill, Bolton (Gtr Manc/Lancs, England) | 24 February | Winter Hill, Bolton (Gtr Manc/Lancs, England) | 28 November | |||||
2015 | Winter Hill, Bolton (Gtr Manc/Lancs, England) | 20 March | Winter Hill, Bolton (Gtr Manc/Lancs, England) | 23 November | |||||
2014 | Winter Hill, Bolton (Gtr Manc/Lancs, England) | 19 September | Winter Hill, Bolton (Gtr Manc/Lancs, England) | 26 October | |||||
2013 | Winter Hill, Bolton (Gtr Manc/Lancs, England) | 18 September | Winter Hill, Bolton (Gtr Manc/Lancs, England) | 9 November | |||||
2012 | Winter Hill, Bolton (Gtr Manc/Lancs, England) | 18 March | Winter Hill, Bolton (Gtr Manc/Lancs, England) | 14 November | |||||
2011 | Winter Hill, Bolton (Gtr Manc/Lancs, England) | 15 September | Winter Hill, Bolton (Gtr Manc/Lancs, England) | 6 November | |||||
2010 | Winter Hill, Bolton (Gtr Manc/Lancs, England) | 26 September | Winter Hill, Bolton (Gtr Manc/Lancs, England) | 13 November | |||||
2009 | Winter Hill, Bolton (Gtr Manc/Lancs, England) | 28 October | Winter Hill, Bolton (Gtr Manc/Lancs, England) | 28 October |