I once had a red fox use me to flush young rabbets for the foxes dinner. The fox would maintain about 30 feet between us and move parallel to me. If I got 10 or 20 feet ahead it would catch up, look at me and nod like it was telling me that I should move forward now. If I fell behind the fox waited for me. I didn't have chickens in the neighborhood (a cow pasture) so I kept my Rugger .22 automatic in its holster. Every time I walked in this area checking cows and fences the fox showed up. This went on for weeks. Yes I saw him take a baby bunny I disturbed and several field mice and rats. I also imagine that this fox was also on the look out for afterbirth and calf manure with colostrum in it.