Been trapping for 10ys in the same location. 2xDOC Stoat traps (no kills ever) 3xTimms Traps. Several hundred opossoms...very rarely catch any now. 1xRat Station. Bait rarely gets taken now. 1xLive Rat Trap...only caught one and that got away because I hadn't secured the gate correctly! 2x spring loaded rat traps...never caught any. 2x mice spring traps. Catch mice on a regular basis. I do wonder if that is taking food away from the moreporks though?