Abstract: An animal trap made in the form of a cage provided with a folding door at one end constructed in two approximately equal sections hinged together. The folding door is hinged at the top to a frame which has side members equipped with channels to receive and cooperate with friction-reducing roller means attached to the ends of the bottom segment of the lower folding door panel. The folding door frame is contained in a second frame to which it is hinged along one side to permit the folding door to open outwardly for the removal of a captured animal. The folding door is also equipped with a spring-loaded hinge which is offset at the center between the hinges which connect the folding door panels to accelerate the closing of the folding door and facilitate the secure locking means provided along side members of the lower panel of the folding door for holding the folding door in closed position. A trigger mechanism is hinged to a removable service door attached to the other end of the cage.