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Project partners

British Trust for Ornithology logo
JNCC logo
RSPB logo

Project partners

British Trust for Ornithology logo
JNCC logo
RSPB logo

Population trend graphs

Graphs are available for the UK, individual countries and English regions.

It is possible to calculate trends for English regions due to the high level of coverage and therefore, larger sample size for many species. Unfortunately, this is not possible for Scotland, Wales or Northern Ireland at present. The counties contributing to each region are displayed in the table below.

On each graph, the dark green line is the smoothed trend, the blue dots are the unsmoothed trend, and the pale green line is the upper and lower 95% confidence limits of the smoothed trend.

Click any graph to enlarge it.

Click 'view & save image' to open the large graph in a separate window; right-click and choose 'save image as' to download image.

These graphs may be reproduced, subject to the appropriate acknowledgement of the BTO/JNCC/RSPB Breeding Bird Survey.  Spreadsheets containing the data points for each graph may be obtained by submitting a Data Request Form.

Key for English regions

Region Counties
North West England Cheshire, Cumbria, Lancashire, Greater Manchester, Merseyside
North East England Cleveland, County Durham, Northumberland
Yorkshire and Humber East Yorkshire, North Lincolnshire, North Yorkshire, South Yorkshire, West Yorkshire
East Midlands Derbyshire, Northamptonshire, Leicestershire & Rutland, Lincolnshire, Nottinghamshire
East England Bedfordshire, Cambridgeshire, Essex, Hertfordshire, Norfolk, Suffolk
West Midlands Birmingham, Herefordshire, Shropshire, Staffordshire, Warwickshire, Worcestershire
South East England Berkshire, Buckinghamshire, Hampshire, Isle of Wight, Kent, Oxfordshire, Surrey, Sussex 
South West England Avon, Cornwall, Devon, Dorset, Gloucestershire, Somerset, Wiltshire
London Greater London

BBS population tables

Visit the Population trend tables page to view the latest BBS trends for the UK as a whole, England, Scotland, Wales, Northern Ireland and region-specific graphs, produced for nine English Government Office Regions.

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