Core Counts

The WeBS Core Counts scheme is the principal scheme of The Wetland Bird Survey. Counts are made annually at around 2,800 wetland sites of all habitats; estuaries and large still waters predominate.

Monthly coordinated counts are made mostly by volunteers, principally from September to March, with fewer observations during summer months. During 2014/15, WeBS counters covered 5292 count sectors at 2,799 count sites from July 2014 to June 2015.  Not all Core Counts are linked to individual counters in the WeBS Online database but an increasing number are; 2,031 counters were associated with WeBS Core Count visits made in 2014/15, an increase of 5% on the previous year. The success and growth of these count schemes accurately reflects the enthusiasm and dedication of the several thousands of volunteer ornithologists who participate. It is largely due to their efforts that waterbird monitoring in the UK is held in such international high regard.

WeBS Office Contact Details (Core Counts)

Teresa Frost (WeBS Core Count Organiser)

WeBS Office
British Trust for Ornithology
The Nunnery, Thetford
Norfolk IP24 2PU

Tel. 01842 750050
Fax. 01842 750030

E-mail: webs [at]