Phenology
Year | Migration site | First | Migration site | Last | |||||
---|---|---|---|---|---|---|---|---|---|
2021 | Winter Hill, Bolton (Gtr Manc/Lancs, England) | 17 March | Winter Hill, Bolton (Gtr Manc/Lancs, England) | 6 November | |||||
2020 | Winter Hill, Bolton (Gtr Manc/Lancs, England) | 2 March | Winter Hill, Bolton (Gtr Manc/Lancs, England) | 11 November | |||||
2019 | Winter Hill, Bolton (Gtr Manc/Lancs, England) | 26 March | Winter Hill, Bolton (Gtr Manc/Lancs, England) | 19 November | |||||
2018 | Winter Hill, Bolton (Gtr Manc/Lancs, England) | 25 March | Winter Hill, Bolton (Gtr Manc/Lancs, England) | 23 November | |||||
2017 | Winter Hill, Bolton (Gtr Manc/Lancs, England) | 13 March | Winter Hill, Bolton (Gtr Manc/Lancs, England) | 17 November | |||||
2016 | Winter Hill, Bolton (Gtr Manc/Lancs, England) | 23 February | Winter Hill, Bolton (Gtr Manc/Lancs, England) | 29 November | |||||
2015 | Winter Hill, Bolton (Gtr Manc/Lancs, England) | 19 March | Winter Hill, Bolton (Gtr Manc/Lancs, England) | 4 December | |||||
2014 | Winter Hill, Bolton (Gtr Manc/Lancs, England) | 29 March | Winter Hill, Bolton (Gtr Manc/Lancs, England) | 6 December | |||||
2013 | Winter Hill, Bolton (Gtr Manc/Lancs, England) | 8 September | Winter Hill, Bolton (Gtr Manc/Lancs, England) | 9 November | |||||
2012 | Winter Hill, Bolton (Gtr Manc/Lancs, England) | 28 March | Winter Hill, Bolton (Gtr Manc/Lancs, England) | 13 November | |||||
2011 | Winter Hill, Bolton (Gtr Manc/Lancs, England) | 6 April | Winter Hill, Bolton (Gtr Manc/Lancs, England) | 19 November | |||||
2010 | Winter Hill, Bolton (Gtr Manc/Lancs, England) | 25 September | Winter Hill, Bolton (Gtr Manc/Lancs, England) | 5 November | |||||
2009 | Winter Hill, Bolton (Gtr Manc/Lancs, England) | 12 October | Winter Hill, Bolton (Gtr Manc/Lancs, England) | 16 October |