Grey-headed Wagtail (MOTACILLA (BUDYTES) FLAVA THUNBERGI) illustrated by the von Wright brothers. Digitally enhanced from… https://www.rawpixel.com/image/326232/free-illustration-image-von-wright-brothers-bird-wagtailFree Image from public domain licenseEastern Grey Wagtail illustration. Digitally enhanced from our own original edition of Pictorial Monograph of Birds (1885)… https://www.rawpixel.com/image/434967/free-illustration-image-watercolor-drawing-bird-antique-woodblock-japaneseFree Image from public domain licenseUtagawa Hiroshige (1835) Eastern Grey Wagtail and Rose. Original public domain image from the MET museum. https://www.rawpixel.com/image/7639644/original-public-domain-image-from-the-met-museumFree Image from public domain licenseA grey wagtail (Motacilla melanope). Coloured engraving by Whimper. https://www.rawpixel.com/image/13952013/grey-wagtail-motacilla-melanope-coloured-engraving-whimperFree Image from public domain licenseGrey-headed Wagtail (MOTACILLA (BUDYTES) FLAVA THUNBERGI) illustrated by the von Wright brothers. Digitally enhanced from… https://www.rawpixel.com/image/326216/premium-illustration-psd-motacilla-flava-americaView license