White-backed woodpecker 1♀ , 2♂ (Dryobates leucotus) illustrated by the von Wright brothers. Digitally enhanced from our own…
https://www.rawpixel.com/image/325980/free-illustration-image-von-wright-brothers-bird-white-backed-woodpecker-vintageFree Image from public domain license
Lesser spotted woodpecker (Dryobates minor) illustrated by the von Wright brothers. Digitally enhanced from our own 1929…