Official Statistics

Provisional Cormorant population indices for England 2023

This release includes provisional indices of Cormorant population in England, showing change in population between 1987/88 and 2022/23

From:
Joint Nature Conservation Committee
Published
28 July 2023

Applies to England

Documents

Cormorant indices for England

https://jncc.gov.uk/our-work/cormorant-indices/

Details

  • The statistics are based on data gathered through the BTO/RSPB/JNCC Wetland Bird Survey (WeBS), which are published annually in the Spring.
  • Cormorant indices up to the year 2022/23 are being released early as provisional to enable their use for operational purposes before the main WeBS Official Statistics release in Spring 2024. These provisional indices are based on the vast majority of England Cormorant data that are expected to be included in the subsequent WeBS Official Statistics release, and are therefore expected to be a good indication of the final results.
  • Technical details of the WeBS method are set out in a separate document available on the BTO website
  • The Wetland Bird Survey (WeBS) is a partnership jointly funded by the British Trust for Ornithology (BTO), Royal Society for the Protection of Birds (RSPB) and JNCC, with fieldwork conducted by volunteers.

Updates to this page

Published 28 July 2023

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