Swift

The Swift is sooty brown all over, but against the sky it appears black. It has long, scythe-like wings and a short, forked tail. You could mistake it for a Swallow – but Swifts don’t bend their wings while flying. It’s also impossible to see them land – their nesting places are hidden away in roofs and they fly in and out very quickly. Swifts are very unusual in terms of their length of life – some Swifts can live up to 21 years!
They never perch like Swallows. You might see screaming parties of them careering madly at high speed around rooftops and houses, mainly in towns and cities, especially towards dusk. The Swift is a superb flier. They spend almost the whole of their life on the wing. They land only to breed – they even sleep on the wing!
They are easiest to observe in built-up areas where they have their nests in the cracks, air holes and sometimes specially provided nest boxes.Remember that Swifts are very common in the city, while not so often seen in the countryside.
How to recognise a swift from a swallow?
The Swift is noticeably larger than the Swallow, its wings are longer, much narrower, and scythe-shaped.   A Swift does not fold its wings while flying. Its tail is wider and shorter than a Swallow's.
You should remember that Swifts are not seen as often in the countryside as Swallows.
What do they eat?
Swifts eat only flying insects and small spiders that float in the air.
Swifts' nests
They build their nest in hollows in buildings and in deep holes between bricks, air holes, under tiles and in other well hidden cavities, in rocks, hollows and nest boxes.
The nest is bowl-shaped and formed of blades of grass, leaves, feathers, petals, seeds and even pieces of paper, which are all glued together with saliva.
Wintering
Swifts winter in Africa, south of the Sahara - reaching as far as South Africa.
Swifts in Europe
There is a large population of Swifts in Europe which is relatively stable.