Predation
Northern flying squirrels, along with pine squirrels, are an important prey species for the Spotted Owl Strix occidentalis. They also disseminate spores of the ectomycorrhizal fungi that they eat, and these are essential to many species of conifer and some deciduous trees. Other predators include various other large birds, especially the Great Horned Owl, hawks, the American Marten, the Canadian Lynx the Red Fox, and the Domestic Cat.
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