The Birds of Australia London, Witherby & Co,1910-1927, Australia, Bibliography, Birds, Birds Australia, Pictorial works, Bird, Australia, Mathewsau, Gregory Mathews, Ornithology., This illustration features two birds identified as Cinclosoma castaneotum, commonly known as the chestnut-backed ground-bird. The top bird is depicted in a slightly different posture than the one below, showcasing their distinct plumage with rich chestnut and brown tones, alongside patterns of white and black on their wings and backs. The setting presents a natural background with subtle hints of foliage and texture, emphasizing the birds' harmonious integration into their environment. Their alert expressions and poised stance highlight their inquisitive nature, making them a captivating subject of study in ornithology.