Phenology
Year | Migration site | First | Migration site | Last | |||||
---|---|---|---|---|---|---|---|---|---|
2021 | Winter Hill, Bolton (Gtr Manc/Lancs, England) | 2 March | Winter Hill, Bolton (Gtr Manc/Lancs, England) | 14 October | |||||
2020 | Winter Hill, Bolton (Gtr Manc/Lancs, England) | 3 April | Winter Hill, Bolton (Gtr Manc/Lancs, England) | 9 November | |||||
2019 | Winter Hill, Bolton (Gtr Manc/Lancs, England) | 26 March | Winter Hill, Bolton (Gtr Manc/Lancs, England) | 5 November | |||||
2018 | Winter Hill, Bolton (Gtr Manc/Lancs, England) | 24 March | Winter Hill, Bolton (Gtr Manc/Lancs, England) | 22 October | |||||
2017 | Winter Hill, Bolton (Gtr Manc/Lancs, England) | 11 March | Winter Hill, Bolton (Gtr Manc/Lancs, England) | 9 November | |||||
2016 | Winter Hill, Bolton (Gtr Manc/Lancs, England) | 15 August | Winter Hill, Bolton (Gtr Manc/Lancs, England) | 29 November | |||||
2015 | Winter Hill, Bolton (Gtr Manc/Lancs, England) | 2 April | Winter Hill, Bolton (Gtr Manc/Lancs, England) | 6 October | |||||
2014 | Winter Hill, Bolton (Gtr Manc/Lancs, England) | 15 August | Winter Hill, Bolton (Gtr Manc/Lancs, England) | 7 October | |||||
2013 | Winter Hill, Bolton (Gtr Manc/Lancs, England) | 19 April | Winter Hill, Bolton (Gtr Manc/Lancs, England) | 22 November | |||||
2012 | Winter Hill, Bolton (Gtr Manc/Lancs, England) | 28 January | Winter Hill, Bolton (Gtr Manc/Lancs, England) | 19 October | |||||
2011 | Winter Hill, Bolton (Gtr Manc/Lancs, England) | 1 March | Winter Hill, Bolton (Gtr Manc/Lancs, England) | 17 November | |||||
2010 | Winter Hill, Bolton (Gtr Manc/Lancs, England) | 10 April | Winter Hill, Bolton (Gtr Manc/Lancs, England) | 10 November |