Hybrid between common house-martin and barn swallow (Chelidon rustica L.xHirundo urbica) illustrated by the von Wright… https://www.rawpixel.com/image/325899/premium-illustration-psd-scandinavian-swallow-wild-bird-illustratedView licensePng hybrid common house martin x barn swallow bird hand drawn https://www.rawpixel.com/image/2627935/free-illustration-png-swallow-bird-von-wrightView licenseHybrid between common house-martin and barn swallow (Chelidon rustica L.xHirundo urbica) illustrated by the von Wright… https://www.rawpixel.com/image/326005/free-illustration-image-von-wright-brothers-swallow-scandinavianFree Image from public domain license