Bison, Elk & Bears: Wildlife Guide for Yellowstone’s West Entrance

A close-up photo of a bison with horns standing in a grassy meadow at Yellowstone National Park

May is one of the best months to experience Yellowstone wildlife in all its glory—especially near the West Entrance, where snowmelt and warming temperatures bring animals out of hiding. Whether you’re a first-time visitor or a returning adventurer, this is the time to grab your binoculars, pack your camera, and keep your eyes open for bison, elk, and even bear sightings.

The West Entrance provides quick access to areas like Madison Valley and Gibbon River, prime spots where wildlife gather in spring to graze, drink, and roam freely. Here’s what you’re likely to see—and where to look.


1. Bison – Yellowstone’s Most Iconic Resident

May is calving season for Yellowstone’s bison, so it’s common to see herds with reddish-orange babies—affectionately known as “red dogs”—dotting the landscape.

  • Where to spot them: Look along the Madison River and near Fountain Flats. Bison often graze along the roadside, offering incredible photo ops.
  • Fun fact: Yellowstone is home to the largest free-roaming herd of wild bison in the United States, with over 4,000 individuals roaming the park’s plains and valleys.
A close-up photo of a bison with horns standing in a grassy meadow at Yellowstone National Park

🐂 Tip: Always stay at least 25 yards away—bison may look calm, but they can charge quickly and unexpectedly.


2. Elk – Springtime in the Valleys

As the snow recedes, elk migrate to lower elevations, making them much easier to spot in May.

  • Where to find them: Look for large herds near the Madison Junction and in the meadows around Gibbon River.
  • Males may still have antlers, though they’re starting to shed by late May.
A bull elk walking through a meadow in Yellowstone National Park

🦌 Pro tip: Early morning and dusk are the best times to catch elk grazing in open fields near the road.


3. Bears – Emerging from Hibernation

Bear sightings increase significantly in May as both grizzlies and black bears awaken from their winter slumber.

  • Grizzly bears are often seen with cubs, foraging for roots or scavenging winter carcasses.
  • Black bears may be spotted near wooded areas and open hillsides.
  • Top spots: Watch carefully along the road between Madison Junction and Norris, and in the meadows near Gibbon Falls.

🐻 Safety tip: Carry bear spray, stay in groups, and never approach or feed any bear. Keep a minimum of 100 yards distance at all times.


4. Bonus Wildlife: Other Animals You Might Encounter

While bison, elk, and bears are the headline acts, May is also great for spotting other animals like:

  • Coyotes – Often hunting in open fields
  • Sandhill cranes – Common near wetlands
  • Trumpeter swans – Graceful and often seen on the Madison River
  • Bald eagles – Nesting along rivers, especially in early mornings

🌿 With new plant life and flowing rivers, Yellowstone becomes a springtime sanctuary for all kinds of wildlife.


Best Practices for Wildlife Watching in Yellowstone

To make the most of your Yellowstone wildlife experience, keep these tips in mind:

  • Bring binoculars or a zoom lens to observe safely
  • Stay in your vehicle in high-traffic wildlife zones
  • Follow speed limits—animals often cross roads without warning
  • Visit early in the day or at dusk for the best activity levels

🚗 The West Entrance is particularly accessible in May, making it ideal for half-day or full-day wildlife drives.


If you’re visiting Yellowstone National Park in May, the West Entrance is your gateway to unforgettable wildlife encounters. From bison calves and elk herds to awe-inspiring bear sightings, the park bursts into life with each passing day of spring.

Pack your camera, respect the wildlife, and get ready to experience Yellowstone like never before. And if you’re planning a summer trip, consider booking a guided Yellowstone wildlife tour—it’s one of the best ways to safely explore the park, learn from local experts, and increase your chances of spotting Yellowstone’s incredible animals up close.