Avian anatomy is the study of the structure and function of the anatomical features of birds. This field of study includes the skeletal system, muscular system, respiratory system, cardiovascular system, digestive system, sensory organs, and reproductive system of birds. Understanding avian anatomy is essential for studying bird behavior, physiology, and evolution. Researchers in this area may use various techniques such as dissection, histology, and imaging to study the intricate structures and adaptations of birds. This knowledge is also important for veterinary medicine, conservation biology, and evolutionary biology.