1. Open one side of the carton to make a cage door. Cage doors should be hung open, fastened, deep and wide (cats can't reach the bait inside the cage from three sides). The cage door is hung open and can fall naturally. The cage door is suitable for cats to enter. The bait is preferably fresh and bloody raw meat or sparrows. Black thread of rope sewing machine.

Take a bird as an example. One leg of the bird is connected with a rope and lifted from the cage door. The other leg is also connected with a rope and tied to the bottom of the cage.

2. The bait should be set properly, so that the cat can get the bait all over the body, and the other three cats can't reach it by sticking their paws out of the cage (so there must be depth and width). You can pull a rubber band under the cage door or tie a heavy object to the door so that the cat can touch the bait and break the rope, so that the cage door can descend quickly.

3. Set the installed cage as the only way for cats. After setting, the position cannot be changed. Some cats are so cunning that they have to test for days before they dare to go in. Generally, cats circle around the cage first, and want to reach the bait without entering the cage. In order to facilitate the cat to find the door, you can drop a few drops of blood at the door of the cage.

After being caught, the cat will bark and shake the cage (at this time, it is necessary to test whether the cage is strong). Take the cat out of the cage, it is best to wear gloves to prevent claw injury, and put a rope around the cat's neck and pull it out slowly. In order to prevent the cat from barking for fear of being heard by neighbors, you can cover the cage with cloth or put the cat in a sack.