Wildlife You May Encounter in America's National Parks
Published January 8, 2026 · American Nature Journal Editorial Team
Protected areas often hold larger and more visible wildlife populations than surrounding land. Knowing what to expect makes a visit both safer and more rewarding.
Large mammals
Deer, elk, bison and bears are among the animals most often seen from roads and trails. They are wild and unpredictable, even when they appear calm.
Birds and smaller species
Raptors, waterbirds and songbirds are usually easiest to see early in the morning. Small mammals and reptiles are frequently spotted near trail edges and rock outcrops.
Viewing practices
Observe wildlife from a safe distance and follow local park and wildlife regulations. Never feed animals, keep food stored as instructed, and use binoculars or a zoom lens instead of approaching.
Specific minimum-distance rules vary by park and species; check the managing agency's current guidance before you go.
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