The aircraft was being flown at about 200 feet above ground level in a left turn while the pilot was attempting to locate some sheep. The pilot reported that the aircraft stalled and that during the recovery it struck a bush. This resulted in damage to the right mainplane, right wing strut, right horizontal stabiliser and the brake lines on both mainwheels. The pilot was able to maintain control of the aircraft and land at a nearby airstrip. The pilots attention was diverted from the operation of the aircraft whilst he searched for the sheep and directed the ground party. He had been working long hours and was only obtaining about 4 hours sleep each night and considered that fatigue was a factor in his allowing the airspeed to decay unnoticed.