Phenology
Year | Migration site | First | Migration site | Last | |||||
---|---|---|---|---|---|---|---|---|---|
2021 | Winter Hill, Bolton (Gtr Manc/Lancs, England) | 3 September | Winter Hill, Bolton (Gtr Manc/Lancs, England) | 9 September | |||||
2020 | Winter Hill, Bolton (Gtr Manc/Lancs, England) | 27 August | Winter Hill, Bolton (Gtr Manc/Lancs, England) | 1 October | |||||
2019 | Winter Hill, Bolton (Gtr Manc/Lancs, England) | 14 September | Winter Hill, Bolton (Gtr Manc/Lancs, England) | 16 October | |||||
2018 | Winter Hill, Bolton (Gtr Manc/Lancs, England) | 24 October | Winter Hill, Bolton (Gtr Manc/Lancs, England) | 24 October | |||||
2017 | Winter Hill, Bolton (Gtr Manc/Lancs, England) | 20 September | Winter Hill, Bolton (Gtr Manc/Lancs, England) | 25 October | |||||
2016 | Winter Hill, Bolton (Gtr Manc/Lancs, England) | 5 September | Winter Hill, Bolton (Gtr Manc/Lancs, England) | 10 October | |||||
2015 | Winter Hill, Bolton (Gtr Manc/Lancs, England) | 19 September | Winter Hill, Bolton (Gtr Manc/Lancs, England) | 4 October | |||||
2014 | Winter Hill, Bolton (Gtr Manc/Lancs, England) | 4 September | Winter Hill, Bolton (Gtr Manc/Lancs, England) | 5 October | |||||
2013 | Winter Hill, Bolton (Gtr Manc/Lancs, England) | 8 September | Winter Hill, Bolton (Gtr Manc/Lancs, England) | 24 September | |||||
2012 | Winter Hill, Bolton (Gtr Manc/Lancs, England) | 14 August | Winter Hill, Bolton (Gtr Manc/Lancs, England) | 23 October | |||||
2011 | Winter Hill, Bolton (Gtr Manc/Lancs, England) | 24 February | Winter Hill, Bolton (Gtr Manc/Lancs, England) | 24 February | |||||
2010 | Winter Hill, Bolton (Gtr Manc/Lancs, England) | 2 October | Winter Hill, Bolton (Gtr Manc/Lancs, England) | 4 October | |||||
2009 | Winter Hill, Bolton (Gtr Manc/Lancs, England) | 28 October | Winter Hill, Bolton (Gtr Manc/Lancs, England) | 28 October |