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Wildlife in Yellowstone National Park

Here’s what naturalists are spotting in Yellowstone right now - pulled live from recent research-grade observations. Browse by group, explore the map, and identify what you find with Huck.

49,595
recent observations
30
species listed
14
mammals
10
birds
6
plants

Naturalists have logged 49,595 research-grade observations across the 30 most-recorded species in Yellowstone. The most frequently seen is the American Bison, with 10,871 recorded sightings.

Mammals account for the largest share of what gets recorded there (14 of the species listed here), followed by birds (10).

Rarer finds confirmed in Yellowstone include Grizzly Bear and Gray Wolf - uncommon enough that a sighting is worth logging.

Grizzly BearGray Wolf
🖨️ Printable wildlife checklist

Most-observed species in Yellowstone

American Bison
Bos bison
10,871 observations · iNaturalist
Wapiti
Cervus canadensis
6,120 observations
American Black Bear
Ursus americanus
2,615 observations
Common Raven
Corvus corax
2,595 observations
Pronghorn
Antilocapra americana
2,273 observations
Lodgepole Pine
Pinus contorta
2,119 observations
Brown Bear
Ursus arctos
1,938 observations
Coyote
Canis latrans
1,781 observations
Uinta Ground Squirrel
Urocitellus armatus
1,454 observations
Gray Wolf
Canis lupus
1,233 observations
Mule Deer
Odocoileus hemionus
1,188 observations
Yellow-bellied Marmot
Marmota flaviventris
1,144 observations
Bighorn Sheep
Ovis canadensis
1,106 observations
Mountain Bluebird
Sialia currucoides
1,099 observations
Killdeer
Charadrius vociferus
937 observations
Sticky Geranium
Geranium viscosissimum
876 observations · iNaturalist
Rocky Mountain Fringed Gentian
Gentianopsis thermalis
854 observations · iNaturalist
Common Golden-mantled Ground Squirrel
Callospermophilus lateralis
843 observations
Osprey
Pandion haliaetus
813 observations
American Red Squirrel
Tamiasciurus hudsonicus
806 observations
Trumpeter Swan
Cygnus buccinator
751 observations
Fireweed
Chamaenerion angustifolium
718 observations · iNaturalist
Moose
Alces alces
716 observations
Bald Eagle
Haliaeetus leucocephalus
710 observations
Sulfur Buckwheat
Eriogonum umbellatum
703 observations
Lanceleaf Stonecrop
Sedum lanceolatum
694 observations · iNaturalist
Canada Goose
Branta canadensis
684 observations
Sandhill Crane
Antigone canadensis
667 observations
Black-billed Magpie
Pica hudsonia
666 observations
Brewer's Blackbird
Euphagus cyanocephalus
621 observations

Built from recent research-grade iNaturalist observations. Identifications are community-sourced and may occasionally be wrong, and the ranking reflects where people record and photograph wildlife, so a species seen often here is not necessarily rare elsewhere. Some plants and animals are only out in certain seasons. Treat this as a lively snapshot of what people are finding, not a formal checklist.

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