Phenology
Year | Migration site | First | Migration site | Last | |||||
---|---|---|---|---|---|---|---|---|---|
2021 | Winter Hill, Bolton (Gtr Manc/Lancs, England) | 22 March | Winter Hill, Bolton (Gtr Manc/Lancs, England) | 23 October | |||||
2020 | Winter Hill, Bolton (Gtr Manc/Lancs, England) | 2 September | Winter Hill, Bolton (Gtr Manc/Lancs, England) | 13 November | |||||
2019 | Winter Hill, Bolton (Gtr Manc/Lancs, England) | 26 March | Winter Hill, Bolton (Gtr Manc/Lancs, England) | 25 October | |||||
2018 | Winter Hill, Bolton (Gtr Manc/Lancs, England) | 10 October | Winter Hill, Bolton (Gtr Manc/Lancs, England) | 10 October | |||||
2016 | Winter Hill, Bolton (Gtr Manc/Lancs, England) | 31 March | Winter Hill, Bolton (Gtr Manc/Lancs, England) | 25 October | |||||
2015 | Winter Hill, Bolton (Gtr Manc/Lancs, England) | 6 April | Winter Hill, Bolton (Gtr Manc/Lancs, England) | 15 October | |||||
2014 | Winter Hill, Bolton (Gtr Manc/Lancs, England) | 18 April | Winter Hill, Bolton (Gtr Manc/Lancs, England) | 24 October | |||||
2013 | Winter Hill, Bolton (Gtr Manc/Lancs, England) | 28 February | Winter Hill, Bolton (Gtr Manc/Lancs, England) | 22 November | |||||
2012 | Winter Hill, Bolton (Gtr Manc/Lancs, England) | 6 April | Winter Hill, Bolton (Gtr Manc/Lancs, England) | 2 November | |||||
2011 | Winter Hill, Bolton (Gtr Manc/Lancs, England) | 18 March | Winter Hill, Bolton (Gtr Manc/Lancs, England) | 6 November | |||||
2010 | Winter Hill, Bolton (Gtr Manc/Lancs, England) | 25 September | Winter Hill, Bolton (Gtr Manc/Lancs, England) | 10 November | |||||
2009 | Winter Hill, Bolton (Gtr Manc/Lancs, England) | 12 October | Winter Hill, Bolton (Gtr Manc/Lancs, England) | 12 October |