Learn & discover What is the dawn chorus? Birdsong fact file Swallow (Hirundo rustica) Swallow by Ashley Fisher, Xeno-canto Your browser does not support the audio element. Please click here to download the file Swallow (Hirundo rustica) Alert Status: GreenIdentifying Features: Long wings & tail streamers with royal blue upper partsAverage Length: 17-20 cmAverage Lifespan: 2 YearsAverage Wingspan: 30 - 35 cmBeak type: Flat & wideFeeding:Natural: InsectsHow to feed: Feed on the wing so do not take supplementary foodWhat to feed: Offer plenty of nectar-rich planting to encourage winged insectsNesting: Made from mud & plant fibres. Will use specialist nest boxesWhere to see: Widespread across the UK. Usually found around quiet farm buildings where they like to nest.