The best wing trims allow the bird to flutter to the ground but not maintain flight. This is accomplished by cutting feathers of both wings. Once a wing trim has been done, hold your bird close to the ground, allowing him to gradually discover that he can not fly. Some birds' beaks may never need trimming, but others have overgrown tips or cracks that need smoothing. The beak has a blood and nerve supply and it is a good idea to let your avian bet decide how much, if any, should be removed.
Most vets have a special tiny sanding tool to use.
This is not recommended at home. Nail trimming is the most common avian grooming procedure. This can be done at home, but again it is advisable to learn from an expert. Parrots may have nails that become very sharp and painful to the person on whose shoulder they are perched. Do not give your bird sandpaper perches in hopes of wearing the nails down.