The Nutcrackers are in the order of Passeriformes, and the family of Corvidae crows and jays, and genus of Nucifrage (nutcrackers). There are only two members of this genus:

Spotted Nutcracker Nucifraga caryocatactes
Clark's Nutcracker Nucifraga Columbiana

Both species eat the seeds of Pine trees. Photographs are presented of the Clark’s Nutcracker.