Herrn von Buffon's Naturgeschichte der Vögel, Brünn, Joseph Georg Trassler, 1786-1793, birds, ornithology, classification, pictorial works, Motacilla flava, The illustration depicts a songbird standing upright on a rocky perch, showcasing its distinctive plumage. The upper parts are a rich brown with subtle streaks, while the underparts feature a vibrant yellow hue, adding a striking contrast. Its elongated body, pointed wings, and long tail suggest agility and grace. The bird's head is adorned with a patterned crown and a delicate throat, emphasizing its elegant appearance. The background features a lightly sketched sky, enhancing the focus on the bird itself, which is rendered with careful attention to detail, highlighting its unique characteristics.