Swifts Spark Joy: The Urgent Need to Save Britain's Aerial Marvels
Swifts are the ultimate endurance athletes of the sky, wheeling and screaming through British summers. These remarkable birds spend nine months of the year airborne, covering approximately 14,000 miles annually on their migratory journeys from sub-Saharan Africa to the UK and back. Their arrival heralds the start of summer, while their departure marks its end, offering a heart-soaring display of beauty in between. It's no wonder they are deeply beloved by many.
"Swifts spark joy," declares Hannah Bourne-Taylor, a passionate swift advocate and author of Nature Needs You: The Fight to Save Our Swifts. Edward Mayer, founder of Swift Conservation, recalls childhood memories: "I used to lie on the kitchen table with my head outside the window watching them. They're absolutely gorgeous ... Like an aerial shark, in perpetual motion."
Why Swifts Are in Peril
Despite their beauty, swift populations are in steep decline. From 1995 to 2023, the UK swift population fell by a staggering 68%. Dr Guy Anderson, the RSPB's migratory birds programme manager, notes that this decline is consistent across the country. The reasons are complex, but key factors include the loss of nesting sites due to changes in building and renovation practices, which have reduced access to the nooks and crannies swifts need.
Another critical issue is the decline in insect populations, which form the exclusive diet of swifts. Recent research indicates that poor weather conditions can negatively impact their breeding success, and increased climate volatility may exacerbate this problem. "The other six-legged elephant in the room is insects," Anderson emphasises, highlighting the interconnected challenges facing these birds.
10 Ways You Can Help Swifts
- Become a Nest Detective: Use the RSPB Swift Mapper app or website to record sightings of nesting swifts. This citizen science tool helps conservation groups target their efforts by mapping colonies and "screaming parties" where swifts gather.
- Champion Swift Bricks: Advocate for mandatory swift bricks in new builds. These small structures provide permanent nesting sites and can be easily installed during construction or renovations. Bourne-Taylor's Feather Speech campaign is pushing for this change nationally.
- Install Swift Boxes: Swift boxes are inexpensive and relatively simple to install under eaves at least five metres high, with a clear flightpath. Swift Conservation offers advice and templates, and multiple boxes can encourage colony formation.
- Be Patient and Welcome Other Birds: If house sparrows or other species use your swift box first, that's beneficial, as they are also in need of help. Swifts may eventually take over, and early-nesting birds can fledge before swifts arrive.
- Broadcast Swift Sounds: Play recordings of swift calls from a windowsill during June and July to attract prospecting young birds. Swift Conservation sells CDs or MP3 files for this purpose.
- Protect Insects: Create wildlife havens in gardens or advocate for green spaces to support insect populations. Planting nectar-rich flowers, shrubs like hawthorn, and maintaining hedges can all help.
- Get Involved Locally: Join swift groups through the Swift Local Network, participate in Swift Awareness Week (27 June-5 July), or engage with local RSPB activities to support community efforts.
- Participate in Citizen Science: Contribute to surveys like the British Trust for Ornithology/RSPB/JNCC Breeding Bird Survey to enhance knowledge and conservation strategies.
- Help Grounded Birds: If you find a grounded swift, gently place it on your hand and bounce it to encourage flight. For juveniles or birds that cannot fly, contact a swift carer listed on the Swift Conservation website.
- Enjoy and Inspire: Savour the short swift season and let it motivate you to take action. As Anderson says, appreciating these birds can drive efforts to protect them.
By taking these steps, you can help ensure that swifts continue to spark joy in British skies for generations to come. Their survival depends on collective action, from individual gardeners to national policymakers.
