Every year two full-day counts are held across the entire BOS area. The first is held in early January from 08:00-16:00 and the second in early May for 12 hours. The surveys complement the WRSS and SRSS in providing a count of the total number of species across the entire region, not just specific sites.

The surveys are conducted as a team, with the aim to field at least one team per 100-km square. For observers, the incentive is to beat the par species count of previous years, with awards given to the team most over par. A second award is provided for finding the "star" species of the day.

The comparitive results over the years supplements the findings from the other surveys, giving us confidence in the survey results.

Updated 26th March 2020

Due to the current Covid 19 outbreak, the BOS has cancelled the April and May indoor meetings. If the current travel & social distancing restrictions remain in place or increase, we will also have to cancel the outdoor meetings scheduled for June through August. Read more ...

Due to the COVID-19 restrictions this meeting may need to be cancelled. Please check nearer the time to see if this meeting will be going ahead and where it will occur.

Details of the venue will be published here and in the Newsletter nearer the time. Read more ...

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

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