Our case was a 2‐3‐ year‐old Baghdad pigeon brought to our clinic with complaints of lameness in the right footand swelling in the tibiotarsus region. The radiographic examination showed severe soft tissue growths, and lysis in thebone tissue were observed in the right tibio‐tarsus region. As a result of clinical and radiological examinations, it wasdecided to amputate the right extremity. The operation was performed under general anesthesia from approximately 5 mmproximal to the femuro‐tibia joint. In the material sent for histopathological examination, growths of approximately 3x2 cmin diameter, with elastic and hard consistency, were determined in the tibio‐tarsus region of the right extremity. The skinsurface was ulcerative and necrotic. The cross‐sectional surface of the mass was gray‐white and had a hemorrhagic andnecrotic appearance. Microscopic examination revealed highly reactive bone tissue in areas surrounded by dense vascularstroma. As a result of the evaluations, the patient was diagnosed with giant cell osteosarcoma. This case report aimed tocontribute to the literature about the clinical, radiological, and histopathological features of giant cell osteosarcoma in aBaghdad pigeon.