How to catch a feral cat using The Trap Man humane live catch feral cat cage trap. Place the The Trap Man Feral Cat Trap on the ground and make certain it is stable and will not rock or tip over, place a house brick or similar weighty item on the top. The Cat Trap should be checked every few hours if set during the day and in the morning if set overnight and at least every day. These feral cat traps are made in UK by ourselves in our own workshop