A survey of breeding birds, conducted using 3 visits over 3 months to a random 1km square.


  • to gather detailed information on all species that breed during the summer within the BOS
  • to record the number (abundance) and distribution of breeding species over time
  • to assess the long term trends of breeding species in our area

This survey began in 1991 and is one of the longest running local surveys of breeding birds in the country.

The survey requires observers to make 3 visits over the space of 3 months to a randomly allocated 1km square and record the breeding evidence of all species observed along with their number.

To participate in this survey, please contact the BOS Bird Recorder: Contacts.

For further details on the survey see Summer Random Square Survey.


Construction work on HS2 Phase One is due to commence in 2018, with completion scheduled for 2026. HS2 crosses the BOS area from Brackley to Southam via Chipping Warden. Read more ...

Deer, Woodlands and Birds - should we be in a flap?  -   Jamie Cordery

Jamie Cordery is South East Deer Liaison Officer for The Deer Initiative, a broad partnership of statutory, voluntary and private interests dedicated to ensuring the delivery of a sustainable and well-managed wild deer population in England and Wales.

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