Swift

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Bird 🐦
🐦
Apus apus
Size16–17 cm Slightly smaller than a Swallow but with longer scythe-shaped wings
Weight36–50 g About the weight of a large plum
Lifespan9–21 years
RarityCommon
M vs FSexes look identical
HabitatAerial — feeds entirely in the air; nests in roof spaces, old buildings and cliff faces
Best timeMay–August only
ConservationUK: Red LC
Did you know?
Young Swifts that leave the nest fly continuously for 2–3 years before landing for the first time — they sleep, eat, drink and even mate on the wing
More for experts
Swifts have extremely small, weak legs (their name "Apus" means "without feet") — they cannot walk and if grounded can only relaunch from a raised surface
Often confused with
Swallow (red throat, white underparts, perches on wires), House Martin (white rump, white belly)