Desk rack bird

In Brent Knoll's St. Michael's Church there are three bench carvings. Are they 14th century? - carving bench

I ask myself, why should the hanging of a fox, which symbolizes the Abbot of Glastonbury represented. When the abbot was really hung up in the 16 Century is done, I wonder if they were carved bench ends later released, or when the wood-carver, or the person appointed by him, which could be a seer.