The upper beak of a psittacine is made up of a couple of bones that are attached to a hinge to the bones of the braincase and the horny tissue over it. Unlike the upper jaw of mammals, a parrot's upper beak is flexible and capable of some movement and you can daily checking the health of your bird. Look for cracks, overgrowth, or discoloration of the beak and including different textures of perches, including cement perches specifically made for beak and nail health. Note: Do not use sandpaper perches.
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