Official Statistics

Statistics on Waterbirds in the UK

An important indicator of waterbird status and the health of wetlands in the UK. Statistics derived from the Wetland Birds Survey (WeBS) using data to 2017.



Based on assessments of the size of non-breeding waterbird populations; trends in their numbers and distribution; and an assessment of the importance of individual sites for waterbirds.

Data help fulfill objectives of international wetland-related Conventions and Directives & inform local decision making. WeBS is run by the British Trust for Ornithology, RSPB, and the Joint Nature Conservation Committee (on behalf of the statutory nature conservation agencies), and in association with the Wildfowl and Wetlands Trust. The underlying data is collected by thousands of volunteer WeBS surveyors.

Published 3 May 2018