A crested boatbill (Cancroma cochlearia) and common heron (Ardea cinerea). Coloured engraving, ca. 1808, after S. Edwards. https://www.rawpixel.com/image/13951987/image-art-animal-public-domainFree Image from public domain licenseBlauwe reiger (Ardea cinerea) (1596 - 1610) by Anselmus Boëtius de Boodt and Elias Verhulst https://www.rawpixel.com/image/13741543/image-paper-cartoon-watercolorFree Image from public domain licensePng sticker gray heron bird hand drawn https://www.rawpixel.com/image/2634606/free-illustration-png-heron-ardea-cinerea-greyView licenseGray heron (Ardea cinerea) illustrated by the von Wright brothers. Digitally enhanced from our own 1929 folio version of… https://www.rawpixel.com/image/325756/free-illustration-image-ardea-cinerea-von-wright-brothers-birdsFree Image from public domain licenseGray heron (Ardea cinerea) illustrated by the von Wright brothers. Digitally enhanced from our own 1929 folio version of… https://www.rawpixel.com/image/325619/premium-illustration-psd-heron-ardea-cinerea-paintingView license