Phenology
Year | Migration site | First | Migration site | Last | |||||
---|---|---|---|---|---|---|---|---|---|
2021 | Winter Hill, Bolton (Gtr Manc/Lancs, England) | 28 August | Winter Hill, Bolton (Gtr Manc/Lancs, England) | 28 August | |||||
2020 | Winter Hill, Bolton (Gtr Manc/Lancs, England) | 19 August | Winter Hill, Bolton (Gtr Manc/Lancs, England) | 19 August | |||||
2019 | Winter Hill, Bolton (Gtr Manc/Lancs, England) | 20 September | Winter Hill, Bolton (Gtr Manc/Lancs, England) | 20 September | |||||
2018 | Winter Hill, Bolton (Gtr Manc/Lancs, England) | 11 July | Winter Hill, Bolton (Gtr Manc/Lancs, England) | 11 July | |||||
2017 | Winter Hill, Bolton (Gtr Manc/Lancs, England) | 6 August | Winter Hill, Bolton (Gtr Manc/Lancs, England) | 28 August | |||||
2015 | Winter Hill, Bolton (Gtr Manc/Lancs, England) | 29 August | Winter Hill, Bolton (Gtr Manc/Lancs, England) | 29 September | |||||
2014 | Winter Hill, Bolton (Gtr Manc/Lancs, England) | 14 August | Winter Hill, Bolton (Gtr Manc/Lancs, England) | 2 September | |||||
2013 | Winter Hill, Bolton (Gtr Manc/Lancs, England) | 20 September | Winter Hill, Bolton (Gtr Manc/Lancs, England) | 20 September | |||||
2012 | Winter Hill, Bolton (Gtr Manc/Lancs, England) | 30 April | Winter Hill, Bolton (Gtr Manc/Lancs, England) | 28 August | |||||
2011 | Winter Hill, Bolton (Gtr Manc/Lancs, England) | 15 July | Winter Hill, Bolton (Gtr Manc/Lancs, England) | 28 September | |||||
2010 | Winter Hill, Bolton (Gtr Manc/Lancs, England) | 25 April | Winter Hill, Bolton (Gtr Manc/Lancs, England) | 4 October |