The BOS contributed to the BTO Bird Atlas 2007-2011 via its ongoing surveys (see Fieldwork) and specific contribution by our members. Our Oxforshire data has been collated along with other regional surveys to produce the Thames and Chiltern Bird Atlas. This atlas presents Abundance and Distribution maps on a finer scale than that of the national BTO atlas.
Bird Atlas
The changing fortunes of Curlew Numenius arquata in the heart of England in the past 100 years
This new paper, published on World Curlew Day on 21 April 2022, describes the current and historical status of the Eurasian Curlew Numenius arquata in an area of 1200 square kilometres centred on Banbury. Click here to link to the paper Read more ...
13 May 2024 - Indoor Meeting at 7.30pm
Curlew River - Jan Guilbride
This meeting will focus on presenting an update on BOS Curlews and a discussion on BOS conservation. Read more ...
Long Day Count: 4 or 5 May 2024
The Long Day Count is carried out by teams of observers in each of the twelve 10km squares recording the number of bird species seen during a maximum of 12 daylight hours on the second Sunday in May each year. Read more ...