Synonyms for Ground Squirrel (same or very similar meaning)
WordNet sense 1 (small striped semiterrestrial eastern American squirrel with cheek pouches):
hackee, eastern chipmunk, striped squirrel, Tamias striatusWordNet sense 2 (any of various terrestrial burrowing rodents of Old and New Worlds; often destroy crops):
gopher, spermophileFrom the ODE community, based on WordNetadd/edit