Like most other conifers, the Douglas Fir can provide nesting habitiat and cover for many types of birds and small mammals. Antelope, deer, elk, mountain goats, and mountain sheep eat the twigs and foliage in the winter or early spring when their other food supplies are covered in snow or have not yet emerged. The seeds of Douglas Firs are used by blue grouse,songbirds, squirrels, rabbits, and other small animals. Bears often scrape off the bark on young trees to eat the sap layer beneath the surface. On large Douglas Fir trees, it is common to see an eagle or hawk perched on top seeking out its next meal.