Western yellow wagtail (Motacilla [budytes] flava) illustrated by the von Wright brothers. Digitally enhanced from our own…
https://www.rawpixel.com/image/326303/free-illustration-image-von-wright-brothers-wagtail-high-resolution-cc0-art-birdFree Image from public domain license
Chaffinch male (Fringilla coelebs) illustrated by the von Wright brothers. Digitally enhanced from our own 1929 folio…
Spotted Nutcracker (Nucifraga caryocatactes) illustrated by the von Wright brothers. Digitally enhanced from our own 1929…
https://www.rawpixel.com/image/326079/free-illustration-image-von-wright-brothers-nutcracker-nucifraga-caryocatactesFree Image from public domain license
Black-headed gull (Larus Ridibundus) illustrated by the von Wright brothers. Digitally enhanced from our own 1929 folio…