G-SIXG was flying at approximately 2,000 ft amsl when it struck a bird, causing “violent shaking” of the airframe until the propeller blades detached. The pilot positioned the aircraft for a forced landing onto a field on a southerly heading. He saw power cables running along the side of the field but the low sun prevented him from seeing other power cables running across the field. Just before the aircraft landed it struck one of the cables running across the field, which brought it to a halt and tipped it onto its side. The occupants exited the aircraft unaided although the passenger had minor injuries.