Glaucous gull (Larus glaucus) illustrated by the von Wright brothers. Digitally enhanced from our own 1929 folio version of… https://www.rawpixel.com/image/326280/free-illustration-image-seagull-von-wright-brothers-centuryFree Image from public domain licenseGlaucous gull (Larus glaucus) illustrated by the von Wright brothers. Digitally enhanced from our own 1929 folio version of… https://www.rawpixel.com/image/326199/premium-illustration-psd-gull-america-ancientView license