Ibis, London, Published, for the, British, Ornithologists', Union, by, Academic, Press, birds, ornithology, periodicals, Two vibrant birds perched on a branch, showcasing their unique features. The upper bird has an olive-green plumage with a striking yellowish hue around its throat. Its beak is stout and black, perfectly suited for its diet. Below, a second bird of slightly darker tones rests close by, both species surrounded by delicate leaves and twigs. This illustration highlights the natural beauty and intricate details of their feathers, emphasizing their roles in the ecosystem as lively creatures. The title notes their scientific classification, suggesting the significance of these birds in ornithological studies.