Bar-Tailed Humming Bird, Stoke Humming Bird, Underwood's Humming Bird, Gould's Humming Bird, and Topaz Throated Humming… https://www.rawpixel.com/image/411916/free-illustration-image-hummingbird-humming-bird-birds-public-domainFree Image from public domain licenseFork-tailed humming-bird illustration from The Naturalist's Miscellany (1789-1813) by George Shaw (1751-1813) https://www.rawpixel.com/image/386659/free-illustration-image-humming-bird-hummingbirdFree Image from public domain licenseRuby-throated Humming Bird from Birds of America (1827) by John James Audubon, etched by William Home Lizars. Original from… https://www.rawpixel.com/image/277309/free-illustration-image-humming-bird-audubonFree Image from public domain license