Frisky Brisky Hippety Hop by Susan Lurie
Ol’ Mama Squirrel by David Ezra Stein
Susan Lurie’s book shows photographs of a real squirrel doing everyday squirrel tasks, including dodging a predator and building a nest.
Ol’ Mama Squirrel shows the protective side of a mother squirrel when potential predators show up at her tree. Since the emphasis is on the sounds the mother squirrel makes, you could play a recording of real squirrel noises if you click on the sound bars here: http://www.wired.com/2014/06/squirrel-alarm-calls-are-surprisingly-complex/. You could also talk about what baby squirrels are called (kits or just babies according to various sources).