Popping in and out of the house at will is the privilege of thisfeline supplied with an easy-to-make cat passage. Installed in an outside wall, the passage extends from a doorlessopening flush with the wall’s exterior to the interior of thehouse, where it protrudes as a small, closed box. The upward-slopingbottom of this box lifts to let Jeffrey enter the passage to getoutside. When he comes back in, he nudges the box’s flat top up. Placing food at each end of the passage and propping the box openat first got Jeffrey used to the device.
Untrained neighboring cats andwild animals have yet to figure it out. John Stengel of Berkeley made Jeffrey’s passageway out of1/2-inch plywood with 3/4-inch trim around the opening in the interiorwall. The passage is 7 inches wide, 8 inches high, and extends 7-1/2inches through the wall. The 8-1/2-inch bottom of the box angles upwardat 30[Deg.], extends 7-1/2 inches into the room, and measures about1-1/2 inches from the floor at its lowest point.