I have been turning my hens out pretty much everyday for a year. On Tuesday one of my hens did not make it back to The coop and yesterday another. I live in a rural area with plenty of natural predators around. I have never had a problem in the past year. My neighbor across the field bout 200 yards came over once with a concern that her dog would kill my hens if they came over there. The had been venturing across the field lately. I assumed her dog got the first one. The second however was yesterday and i was outside with them pretty much the time they were out. I came home last night after dark and went to close the pen and there was a random cat in the pen but no evidence of a chicken body. Can a regular cat kill a chicken?