Phenology
Year | Migration site | First | Migration site | Last | |||||
---|---|---|---|---|---|---|---|---|---|
2020 | Winter Hill, Bolton (Gtr Manc/Lancs, England) | 16 March | Winter Hill, Bolton (Gtr Manc/Lancs, England) | 24 September | |||||
2019 | Winter Hill, Bolton (Gtr Manc/Lancs, England) | 26 March | Winter Hill, Bolton (Gtr Manc/Lancs, England) | 29 October | |||||
2018 | Winter Hill, Bolton (Gtr Manc/Lancs, England) | 22 March | Winter Hill, Bolton (Gtr Manc/Lancs, England) | 4 October | |||||
2017 | Winter Hill, Bolton (Gtr Manc/Lancs, England) | 13 March | Winter Hill, Bolton (Gtr Manc/Lancs, England) | 27 October | |||||
2016 | Winter Hill, Bolton (Gtr Manc/Lancs, England) | 30 March | Winter Hill, Bolton (Gtr Manc/Lancs, England) | 31 October | |||||
2015 | Winter Hill, Bolton (Gtr Manc/Lancs, England) | 20 March | Winter Hill, Bolton (Gtr Manc/Lancs, England) | 27 September | |||||
2014 | Winter Hill, Bolton (Gtr Manc/Lancs, England) | 29 September | Winter Hill, Bolton (Gtr Manc/Lancs, England) | 20 November | |||||
2012 | Winter Hill, Bolton (Gtr Manc/Lancs, England) | 19 March | Winter Hill, Bolton (Gtr Manc/Lancs, England) | 14 October | |||||
2011 | Winter Hill, Bolton (Gtr Manc/Lancs, England) | 19 March | Winter Hill, Bolton (Gtr Manc/Lancs, England) | 20 July | |||||
2010 | Winter Hill, Bolton (Gtr Manc/Lancs, England) | 27 September | Winter Hill, Bolton (Gtr Manc/Lancs, England) | 27 September |