Swifts are in trouble, with their breeding numbers plummeting.

The 51% decrease in their breeding numbers in the UK between 1995 and 2015 has made swifts an amber-listed species.

Swifts in trouble

Why are their breeding numbers plummeting?

We believe loss of nest sites is at least partly responsible. These migrant birds return from their wintering grounds in Africa to the same spot each year to breed – usually in buildings, in gaps under roof tiles and eaves. 

Due to our tendency to seal up buildings during renovation or knock them down, swifts are returning to discover their nest site has gone or access is blocked.

We need your help

Tell us about the swifts your see, or don't see! 

Your information will help our knowledge of swifts so that more nest sites can be provided and protected. Tell us where you see swifts and help us to help them.

What to look for 

We'd like to find out where swifts are seen and where they're nesting. Watch out for screaming groups of swifts flying at roof-height (that means they're breeding nearby), or where you've seen swifts nesting – perhaps entering a roof or hole in a building.

You don't need to report sightings of swifts that are either very high in the sky, feeding over water bodies or away from villages, towns and cities. These birds could have travelled some distance and may not be local breeding birds.

When to look

The best time to look is around dusk on a warm, still evening, or early morning. And if you can see the nest, it's not a swift’s. June and July are the best months to look for screaming swifts, around dusk or early morning. These are likely to be young birds pairing up for the first time looking for potential nest sites.

Give swifts a home!

There are lots of ways to help swifts!

Why not set up a nestbox to give swifts a place to nest and breed year after year. Take part in our High home for swifts activity. 

Swift Cities

Swifts need our help – and fast. So we have launched a new national project called Swift Cities. Working together with local people, organisations and businesses, our aim is to halt and reverse the decline of swifts. How we'll do it:

  • Raising public awareness of the plight of swifts.
  • Working in partnership with planners, developers, local authorities and businesses to protect and provide nest sites for swifts in developments and renovations.
  • Monitoring local swift populations and nest sites through citizen science.

Following the success of the first Swift Cities, in Belfast and Oxford, we aim to launch more Swift Cities all around the UK.

Swift facts


A swifts average daily flight distance.


Parent swifts can collect up to this many insects in a day.


The top speed of the fastest proven swift flight.
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