A Practical Handbook of British Birds London Witherby 1920-24 Birds Great Britain, This illustration features a detailed anatomical diagram of a bird, showcasing various parts labeled for educational purposes. Each section is marked with arrows directing attention to specific features such as the upper and lower bill, wings, tail, and feet, along with additional annotations highlighting areas like the quills and feathers. The diagram serves as a valuable reference for identification and understanding of avian structure, emphasizing the intricate design of bird anatomy.