common linnet (Acanthis linaria) illustrated by the von Wright brothers. Digitally enhanced from our own 1929 folio version… https://www.rawpixel.com/image/326286/premium-illustration-psd-von-wright-brothers-common-linnet-acanthis-linariaView licensecommon linnet (Acanthis linaria) illustrated by the von Wright brothers. Digitally enhanced from our own 1929 folio version… https://www.rawpixel.com/image/325951/free-illustration-image-von-wright-brothers-birds-common-linnetFree Image from public domain license