I am thinking why would such and such kill and not eat or drag chicken away ? I say it is a cat.
As a small boy I used to chase headless chickens,they didn't get too far.The neighbor chopped the heads off and away they went;I got paid in rats,my gig didn't last long . Mother asked me where did I get all those white rats,I told her I chased chickens for my neighbor,will she went to talk to him,tell him I didn't need anymore rats,,,will then she saw all those headless chicken hanging up,let out a scream,mad as hell..so ended my chicken chasing days,butt wait there is more,,after that the farmer neighbor got me to find lost duck eggs,that was harder work.
Forgive me my brothers,I use any excuse to go back in time.