Swifts — remarkable birds that eat, sleep and mate on the wing, returning each May from a 3,500-mile migration — have declined by nearly 70% since 1995 and are now red-listed, largely for want of nest sites in modern buildings. A Coltishall company, Action for Swifts, makes S Bricks that can be built into new homes or retrofitted to provide them, with local examples already installed at Bure Gardens.
