A survey where observers are each given a randomly selected 1km square and record species and numbers for a minimum period of 2 hours between 9am and noon.


  • to gather detailed information on winter species so that, over time, we have a measure across the whole area of the BOS;
  • to provide data used to identify trends in both abundance and distribution of winter species.

The BOS is conducting a survey of Yellowhammers in the first 2 weeks of July 2018 to determine their population abundance, distribution and breeding status. All members and the general public are invited to participate. Read more ...

Silent Spring revisited  -  Conor Jameson

Conor last visited the BOS in May 2016 to talk about his book Looking for the Goshawk. This time Conor will talk about what inspired him to write his new book, and what he discovered when he looked into Rachel Carson's impact at the time of her era-defining book, and whether her warnings have been adequately heeded, acted upon, and remembered. Read more ...

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