Abstract: A rod is rotatably mounted parallel to and above the bottom in a cage near the back. A bait tray is affixed to the rod in a manner whereby the tray is rotated by an animal taking bait therefrom. A trigger device including a plurality of linking rods couples the bait tray to the hook of a pivotally mounted door at the front of the cage in a manner whereby the door is maintained in open position next-adjacent the top in the cage by one of the linking rods when the bait tray is free from disturbance and the one of the linking rods is withdrawn from the hook of the door to close the door and seal the cage when the bait tray is rotated.