A monograph of the Trochilidae, or family of humming-birds, London, Printed by Taylor and Francis, 1861 i.e. 1849-1861. Hummingbirds, Polyonymus, Caroli, A pair of vibrant hummingbirds are depicted in mid-flight, showcasing their vivid green plumage and striking red throat patches. They are positioned near a delicate flowering plant, featuring slender leaves and clusters of small, pale yellow blooms. The scene captures the beauty and grace of these agile birds as they hover near the blossoms, likely drawn to the nectar. The overall composition emphasizes the intricate details of both the birds and the flora, highlighting the harmony of nature.