We lost 5 hens in a week. Head off, back breast and leg eaten on one side or whole bird eaten with only wings left. Most at night 2 in day. Some bodies in the open, 2 completely eaten inside a small coop. One body was hauled over a fence during the day. The chickens were locked up at night. We found a small opening at the base of the coop. It looked like it would only accommodate a weasel or skunk but there was never an odor. We were perplexed.
Yesterday we shored up the coop and set 3 traps of various sizes baited with the dead chicken remains. This AM one trap near the hole contained a mother skunk and her subadult offspring. Another small trap had been snapped but no animal. A third was on the opposite side of the chicken yard near our house with another subadult skunk. Here is what we should learn. A skunk can prey without leaving an odor and skunks can prey during daylight hours. Of course we are assuming these were the only predators. We are setting the traps again tonight.