Home Sweet Home Cal ‘C’ Yum Perch Home Sweet Home Cal ‘C’ Yum Perch – These fantastic Cal C Yum perches by Sharples ‘N’ Grant are totally safe and help keep your bird’s feet and beak in tip-top condition. Made from crushed sea shells, this perch provides an excellent source of calcium and iodine, whilst the bird trims its nails or beak. The wavy design exercise the bird’s feet and legs. Sizes for small, medium and large birds. Supplied with easy to use fittings.