In addition to the monthly meetings, members receive a newsletter each month, a copy of the Annual Report, have access to the BOS reserves and can participate in the various surveys undertaken by the Society.

You can join at any time of year. The fees listed below are the full annual rate. If you join part way through the year then a pro-rata fee will apply.

Adult £23.00
Joint £35.00
Junior (under 18) FREE 
Senior Citizen £16.00
Joint Senior Citizen £23.00
Corporate £35.00

To join, please contact the New Members Officer, Helen Raine by email, or come along to one of our monthly meetings and speak to one of the committee members.

Bearded Tit at Bicester Wetland © Derek Hales Tree Sparrow at Balscote © Richard Dunn Song Thrush © Nick Truby Teal © Trevor Easterbrook

In March 2020 the BTO launched their Chaffinch Appeal to raise funds to help them research why the UK population of Chaffinch is undergoing a significant decline. Read more ...

Short Eared Owls - John Calladine, Senior Research Ecologist with the  BTO

Unusual amongst predatory birds, the numbers of breeding Short-eared Owls have declined markedly over recent decades.  The talk will describe recent attempts to better understand what has arguably been one of the least understood birds in Britain and explore how that information could be used to secure their future. 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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