Helianthea osculans (Buff-tailed Star-Frontlet) 

This exquisite ornithological illustration, created by W. Hart, depicts two Buff-tailed Star-Frontlet hummingbirds, scientifically known as *Helianthea osculans*, perched on a flowering vine. Hart, a renowned artist of the 19th century, skillfully captured the vibrant plumage of these delicate creatures, showcasing the iridescent greens and bronze hues of their feathers. The detailed depiction of the blossoms, with their soft pink petals, further enhances the intricate beauty of the artwork. This meticulous rendering reflects the scientific accuracy and artistic finesse that characterized Victorian-era natural history illustrations.