The os-coxae of flamingo and great Indian horned owl it consists of three bones namely ilium, ischium and pubis. In flamingo and great Indian horned owl, the ilium was elongated in shape and consisted of preacetabular and post acetabular parts. The preacetabular part of the ilium in both the species of the present study was quadrilateral in shape. The ischium was flat, almost triangular in outline and was situated ventral to the post acetabular part of the ilium in both species. | Comparative gross morphological studies on the os-coxae of flamingo and the great Indian horned owl
