Rocky Mountains, United States 530 spp. recorded

Yellowstone is open valley between forest and geyser basin, and the openness is why the animals are so visible from the road. Bison are recorded on eight visits in ten and elk on seven, in herds that stop traffic through Lamar and Hayden.

44.581° N   110.619° W

🦜 Nature

297 Species sighted
148,707 Verified sightings From 2019 to 2026
Jul Best month
DAILY SIGHTING PROBABILITY
<5%
Rare
5–20%
With luck
20–40%
Possible
40–70%
Likely
>70%
Very likely

⭐ Iconic Species

📊 Most Spotted

⭐ Iconic Species

📊 Most Spotted

📊 Most Spotted

+ 275 more species with insufficient data

Sounds of Yellowstone National Park

Elk Fight (with bugling)3:10

NPS/Jennifer Jerrett · NPS · Public domain

Wolves0:36

NPS & MSU Acoustic Atlas/Jennifer Jerrett · NPS · Public domain

Sandhill Cranes0:25

NPS & MSU Acoustic Atlas/Jennifer Jerrett · NPS · Public domain

Sighting Calendar

How many species you'd see in a day

24
Jan
23
Feb
24
Mar
28
Apr
39
May
46
Jun
48
Jul
43
Aug
37
Sep
30
Oct
18
Nov
24
Dec

Sighting Zones

Warmer areas are where all species together are recorded most often.

  1. Swan Lake
  2. Mammoth Hot Springs area
  3. Old Faithful area
  4. Hayden Valley · Alum Creek
  5. LeHardy Rapids
🏕️ Experience

Essentials

EntrancePaid
TourismHigh
Typical stay
1–2
days
TrailsModerate
World HeritageUNESCO

Climate

Temp °C Rain mm
-10°
52mm
-9°
72mm
-5°
64mm
-2°
69mm
3°
63mm
9°
59mm
15°
32mm
14°
45mm
9°
62mm
1°
65mm
-6°
53mm
-10°
61mm
JanFebMarAprMayJunJulAugSepOctNovDec
0.0 ★★★★★ ★★★★★ Good

Wallace's Line Score

How good is this park for seeing wildlife?
🦜

Biodiversity

Good

How rich is the wildlife?

4.2 Global avg
4.0 ★★★★★ ★★★★★
Species by taxon
🦅 Birds
394
🐒 Mammals
109
🦎 Reptiles
11
🐸 Amphibians
16
530 Total Species
828 Global average across 316 parks
21 Threatened 10 Endemic
🔭

Sighting

Very good

How likely to see animals?

3.6 Global avg
3.3 ★★★★★ ★★★★★
🎯
Top-12 Avg Probability
65% Global avg
67%
📊
Coverage (133 species at ≥5% of 530 in the inventory)
25% Global avg
25%
🔀
Taxon variety in top 12 (7 mammal, 5 bird)
50% Global avg
65%
🔭
Species per 10 outings (distinct species a visitor would meet over 10 outings — effort held equal across parks)
128 Global avg
93
🌟
Iconic-group species (≥15%) (every species from the 19 iconic groups — monkeys, cats, toucans, macaws, sloths, crocodilians… — not just the 4 highlighted above)
16 Global avg
14
⭐
High-prob species (>40%)
30 Global avg
23
🏕️

Experience

Good

How easy and pleasant is the visit?

3.8 Global avg
3.1 ★★★★★ ★★★★★
🌤️ Climate Harsh
Low
🎟️ Entrance Paid
Low
👥 Tourism High
Low
🥾 Trails Moderate
Medium
🌐 World Heritage Yes
Bonus

Before you go

When is the best time to visit Yellowstone National Park for wildlife?

May to July

In those months the park's 12 most-seen species average about 70% on a given day, against about 50% in January–February and November.

Can you see an American Bison in Yellowstone National Park?

Yes

About 90% of wildlife watchers report an American Bison sighting in Yellowstone National Park on a given day, based on 5,002 verified sightings from GBIF citizen-science data from 2019 to 2026.

Can you see a Brown Bear in Yellowstone National Park?

Yes

About 60% of wildlife watchers report a Brown Bear sighting in Yellowstone National Park on a given day, based on 1,077 verified sightings from GBIF citizen-science data from 2019 to 2026. The best time is May (about 80%).

Can you see a Gray Wolf in Yellowstone National Park?

Yes

About 50% of wildlife watchers report a Gray Wolf sighting in Yellowstone National Park on a given day, based on 677 verified sightings from GBIF citizen-science data from 2019 to 2026. The best time is January and February (about 80%).

Can you see an Elk (wapiti) in Yellowstone National Park?

Yes

About 80% of wildlife watchers report an Elk (wapiti) sighting in Yellowstone National Park on a given day, based on 2,928 verified sightings from GBIF citizen-science data from 2019 to 2026. The best time is July and September–November (about 90%).

Where in Yellowstone National Park is wildlife easiest to see?

Around Swan Lake

The richest sighting zone is around Swan Lake, followed by Mammoth Hot Springs area and Old Faithful area, ranked by how many of the park's headline animals visitors can expect to see in each. See the zones on the map.

Is Yellowstone National Park good for wildlife watching?

3.5 out of 5

On the Wallace's Line Score, Yellowstone National Park rates 3.5/5: 204th of 316 parks worldwide and 31st in North America. 31 of its species are reported by about 40% or more of wildlife watchers on a given day.

⚖️

Yellowstone or ?

Compare species and sighting probabilities

Compare parks