A perch for trimming the nails of a bird to a predetermined length so as to prevent over trimming and bleeding resulting therefrom. The perch includes a core that perches the bird, a sheet of sandpaper that is rolled around the core and trims the nails of the bird, and a sleeve that is movably disposed on the sheet of sandpaper and assures that the nails of the bird are trimmed only to the predetermined length so as to prevent the over trimming and the bleeding resulting therefrom. The sleeve is entirely covered with a plurality of throughbores that communicate with the sheet of sandpaper and receive the nails of the bird therethrough when the bird is perched uninhibitedly thereon. The nails of the bird are rubbed against the sheet of sandpaper, by virtue of the sleeve being held fixed in one hand and the core being held in the other hand and rotated and moved axially relative to the sleeve, and trimmed to the predetermined length, by virtue of the diameter of the plurality of the throughbores of the sleeve preventing the predetermined length of the nails of the bird from engaging the sheet of sandpaper. The perch shall vary in its comprising diameters so as to properly accommodate variation in any given anatomical nail structures and accordingly allow different predetermined amounts of the nails of the bird to be trimmed.