An average adult Sable Antelope male weighs about 525 lbs., but I believe that this old buck may be heavier.The horns sweeping back over his neck are a very effective weapon. In a fight, he will kneel down, turn his head sideways, and use a sweeping motion like a scythe to impale his adversary. This species has a facemask similar to the roan antelope. Both sexes have horns. The red-billed oxpeckers are ever-present on this species also. [Hwange NP, Zimbabwe].