Marsh Harrier (Circus aeruginosus) illustrated by the von Wright brothers. Digitally enhanced from our own 1929 folio… https://www.rawpixel.com/image/325732/free-illustration-image-von-wright-brothers-circus-vintageFree Image from public domain licenseMarsh Hawk from Birds of America (1827) by John James Audubon, etched by William Home Lizars. Original from University of… https://www.rawpixel.com/image/277558/free-illustration-image-audubon-hawk-birds-americaFree Image from public domain licenseThe Marsh hawk, and the Reed birds (1758–1764) print in high resolution by George Edwards. Original from The Beinecke… https://www.rawpixel.com/image/4010848/illustration-image-art-botanicalFree Image from public domain licenseOriginal public domain image from Flickr https://www.rawpixel.com/image/4027110/original-public-domain-image-from-flickrView 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 licenseWestern Marsh Harrier (1596 - 1610) by Anselmus Boëtius de Boodt and Elias Verhulst https://www.rawpixel.com/image/13743355/image-paper-art-watercolorFree Image from public domain licenseClass II, Order I, Accipitres. Family Falconidae. Marsh Harrier... by Eugene S M Haines https://www.rawpixel.com/image/14257591/photo-image-frame-wood-artFree Image from public domain licensePng sticker marsh harrier bird hand drawn https://www.rawpixel.com/image/2637109/free-illustration-png-bird-vintage-birds-eagleView licenseVector marsh harrier bird hand drawn https://www.rawpixel.com/image/2686677/premium-illustration-vector-animal-artwork-avesView license6. & 7. The Marsh Harrier (Circus uliginosus) 8. The Duck Hawk (Falco anatum) illustration from Zoology of New York… https://www.rawpixel.com/image/329100/free-illustration-image-circus-james-ellsworth-birdFree Image from public domain licenseMarsh Harrier (Circus aeruginosus) illustrated by the von Wright brothers. Digitally enhanced from our own 1929 folio… https://www.rawpixel.com/image/325662/premium-illustration-psd-america-ancient-animalView license