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Butterfly count records lowest populations as some species have their worst year in over a decade

Butterfly count records lowest populations as some species have their worst year in over a decade
Butterfly count records lowest populations as some species have their worst year in over a decade

Butterfly count records lowest populations since survey began as some species have their worst year in over a decade due to weather changes

  • A survey of British butterflies has recorded the lowest populations since 2010
  • Butterfly Conservation volunteers count butterflies from July 16 until August 8
  • Volunteers recorded an average of nine butterflies, compared with 11 last year










A survey of British butterflies has recorded the lowest populations since it began in 2010.

Each year, Butterfly Conservation enlists members of the public to count butterflies and day-flying moths in gardens or other sunny spots for 15 minutes between July 16 and August 8.

Dr Zoe Randle, from the charity, said this year’s Big Butterfly Count found that ‘the average number of butterflies and moths per count is the lowest we’ve recorded so far’. 

Dr Zoe Randle, from Butterfly Conservation, said this year's Big Butterfly Count found that 'the average number of butterflies and moths per count is the lowest' since 2010 (stock image)

Dr Zoe Randle, from Butterfly Conservation, said this year’s Big Butterfly Count found that ‘the average number of butterflies and moths per count is the lowest’ since 2010 (stock image)

On average volunteers recorded nine butterflies or moths per count, compared with 11 in 2020 and 16 in 2019.

She said some butterflies have more than one generation per year, and the majority of these species had experienced their worst year since the count began. 

‘Weather changes are likely to be the cause of this,’ she added.

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