Drawing, Albrecht Dürer, between 1520 and 1521

Young bird, possibly a cormorant; with wings outstretched. 1520-1 pen and black ink, on vellum. Date: between 1520 and 1521. Dimensions: Height: 56 mm; Width: 45 mm. Medium: wool. Collection: British Museum. Drawing (BM SL,5218.143)