Some come covered with many colorful pieces of rope knotted around the rings. Birds enjoy chewing the wood or untying the knots while swinging, twisting their bodies into all types of positions to reach the items. Caves Caves are similar to trapezes. They consist of a ring hung vertically from a single hanger. Since these swings have only one hanger, they rotate and swing in all directions.
Caves come completely covered with many colorful or white pieces of rope knotted around the rings.
About 2 -3 inches of rope are left loose below the knot. Together these loose ends form a soft, cozy looking halo around the ring. This is also thought to be a good toy for birds who pluck their feathers, as untying the rope knots with their beaks, is believed to distract them from plucking. Some bird owners also believe that if the color of the rope is similar to the color of their bird's feathers, they are more interested in the ropes. Be sure to cut the frayed ends of rope to prevent the bird getting a foot entangled.