We lost one of our 3 1/2 mos old cockerels to a predator. I don't know what it was. The head and neck were gone and lots of feathers around. We set 2 traps for tonight, one medium size with a partial can of tuna and 1 large trap with the rest of the carcass with tuna water drizzled on it. The ground was dry so no tracks or fur seen. What predator kills and only takes the head and neck?