image hosting 30 mbthat bone shield is 9 tiles to the right of and 12 tiles south of the orc corruptor in the picture
the only addon being used is the 1.1.5 orc breeding pit restoration addon
attacking the orc corruptor reduces the amount of bones had by that particular bone shield near the corner
a different orc corruptor's bone shield is 2 tiles south and 6 tiles to the east of him