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.

Aims:

  • 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.

We need your help to find Swifts and their traditional nest sites in Anglican churches.  50 years ago most of our local parish churches had nesting Swifts.  Chris Mason brings us up-to-date  . . . Read more ...

Ladybirds, unravelling the story of an alien invader  –  Helen Roy from the Centre for Ecology & Hydrology

This is BOS’s non-bird talk of the year focusing on Harmonia axyridis (the harlequin) and other ladybirds. Read more ...

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. Read more ...

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