Note to self: think twice before going forward with your plan to train squirrels as domestic house pets. From Wikipedia:
Predatory behavior by various species of ground squirrels, particularly the thirteen-lined ground squirrel, has been noted. For example, Bailey, a scientist in the 1920s, observed a thirteen-lined ground squirrel preying upon a young chicken. Wistrand reported seeing this same species eating a freshly killed snake. Whitaker examined the stomachs of 139 thirteen-lined ground squirrels, and found bird flesh in four of the specimens and the remains of a short-tailed shrew in one; Bradley, examining white-tailed antelope squirrels’ stomachs, found at least 10% of his 609 specimens’ stomachs contained some type of vertebrate, mostly lizards and rodents. Morgart (1985) observed a white-tailed antelope squirrel capturing and eating a silky pocket mouse.
I keed, I keed. I’d still love to have pet squirrels. Just never occurred to me that they are carnivorous.