Hand drawing set of owls illustrated by the von Wright brothers. Digitally enhanced from our own 1929 folio version of… https://www.rawpixel.com/image/325815/premium-illustration-psd-owl-von-wright-brothers-vintageView licenseHand drawn owl png bird set https://www.rawpixel.com/image/2634584/free-illustration-png-owl-birds-vintage-setView licenseAsio otus owl illustrated by the von Wright brothers. Digitally enhanced from our own 1929 folio version of Svenska… https://www.rawpixel.com/image/325977/premium-illustration-psd-owl-owl-animalView licenseHand drawing of birds collection illustrated by the von Wright brothers. Digitally enhanced from our own 1929 folio version… https://www.rawpixel.com/image/326115/premium-illustration-psd-eagle-tawny-owl-sparrowhawkView licensePng long-eared owl bird hand drawn https://www.rawpixel.com/image/2633861/free-illustration-png-owl-asio-otus-birds-north-americaView licenseLittle Screech Owl from Birds of America (1827) by John James Audubon, etched by William Home Lizars. Original from… https://www.rawpixel.com/image/277451/free-illustration-image-owl-little-birdFree Image from public domain licenseLong-eared Owl from Birds of America (1827) by John James Audubon, etched by William Home Lizars. Original from University… https://www.rawpixel.com/image/277372/free-illustration-image-owl-audubon-otus-asioFree Image from public domain licenseAsio otus owl illustrated by the von Wright brothers. Digitally enhanced from our own 1929 folio version of Svenska… https://www.rawpixel.com/image/325700/free-illustration-image-owl-von-wright-brothersFree Image from public domain licenseShort-eared Owl (Asio flammeus) illustrated by the von Wright brothers. Digitally enhanced from our own 1929 folio version… https://www.rawpixel.com/image/325927/free-illustration-image-owl-von-wright-brothers-asio-flammeusFree Image from public domain license25. & 26. The Little Screech Owl (Bubo asio) 27. The Short-eared Owl (Otus palustris) illustration from Zoology of New York… https://www.rawpixel.com/image/329351/free-illustration-image-owl-vintage-james-ellsworthFree Image from public domain licenseShort-eared Owl (Asio flammeus) illustrated by the von Wright brothers. Digitally enhanced from our own 1929 folio version… https://www.rawpixel.com/image/326206/premium-illustration-psd-asio-flammeus-abstract-americaView license