Missing millions: Britain’s hidden chicken crisis

| 23 April 2026
minute reading time
Broiler chickens

A new Wildlife Trusts report uncovers stark inconsistencies in UK poultry numbers reported by government agencies, suggesting the true figure may be up to a third higher than official data indicates.

The Counting Chickens – an analysis of UK poultry numbers report scrutinised poultry data in England’s chicken farming hotspots – Lincolnshire, Norfolk, Shropshire and Herefordshire. It found at least 25 million birds unaccounted for in these four counties alone, with a UK-wide extrapolation pointing to over 67 million missing birds.

Key discrepancies include:

  • Defra’s annual survey: 48 million birds
  • Environment Agency (EA): 106 million birds
  • Animal and Plant Health Agency (APHA): 124 million birds

These gaps come as the Government plans to relax planning rules for factory farms, potentially spurring more megafarms amid concerns over water pollution in areas such as the River Wye.

Agriculture drives most UK water pollution, with the EA attributing 70 per cent of nitrates and 25 to 30 per cent of phosphorus to it last year. According to the Wildlife Trusts, underreported poultry could mean 185,189 cubic metres of unreported manure annually – equivalent to 74 Olympic-sized swimming pools – worsening waterway contamination with nitrogen and phosphorus. That’s a lot of chicken manure!

In the UK, over one billion chickens are slaughtered for meat each year. So when even the Government can’t keep track of how many chickens are in the system, maybe the real question isn’t where the missing birds are – it’s why we’re breeding so many millions of them in the first place, just to foul our rivers and feed a broken system. If the numbers don’t add up, maybe it’s time we stopped counting chickens – and stopped eating them too.

Check out the amazing range of plant-based ‘chicken’ alternatives here.

About the author
Dr. Justine Butler
Justine joined Viva! in 2005 after graduating from Bristol University with a PhD in molecular biology. After working as a campaigner, then researcher and writer, she is now Viva!’s head of research and her work focuses on animals, the environment and health. Justine’s scientific training helps her research and write both in-depth scientific reports, such as White Lies and the Meat Report, as well as easy-to-read factsheets and myth-busting articles for consumer magazines and updates on the latest research. Justine also recently wrote the Vegan for the Planet guide for Viva!’s Vegan Now campaign.

View author page | View staff profile

You might also like...

Scroll up