The clue here is the descriptive name sparrow foot marks, sometimes called crow's feet, which paints a picture of many tiny, angular cuts spreading out like the toe prints of a small bird. The task is to match this appearance to its cause.
Such a pattern arises when fractured glass lacerates the skin. In a vehicle collision the face of an unrestrained passenger is thrown against the windscreen, which crazes and breaks into countless small fragments. These shards produce a cluster of short, irregularly oriented incised wounds over the face, and their radiating layout is what earns the bird-foot description.
Comparing the alternatives: firearm wounds show entry and exit features with soot or tattooing, a stab wound is a single deep penetrating cut, and vitriolage causes chemical burns with dripping splash marks. None reproduces the multiple bird-foot lacerations. Therefore sparrow marks belong to windshield glass injury.\[\boxed{\text{Windshield glass injury}}\]