Yellow-bellied Marmot

Marmota flaviventris

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  • Yellow-bellied Marmot |  Photo: NPS by v8.6m

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Basic Information






Yellow-bellied Marmots are generally between 18.25 and 27.75 inches in length.


up to 15 years


Yellow-bellied Marmot (Marmota flaviventris) facts, habitat, diet, range, marmot pictures and more to help you learn to identify the rodent.




Yellow-bellied Marmots reach breeding age at two, but only a quarter of two-year olds produce litters.


Rocky Mountains with scattered populations.

Number of Offspring

3-8 pups

Observation Tips

Head to Yellowstone National Park for a great chance at seeing Yellow-bellied Marmots in the wild, in particular Sheepeater Cliffs.

What does the Yellow-bellied Marmot look like?

Yellow-bellied Marmots are stout ground squirrels with short stocky limbs. Overall they have brown fur with yellow bellies, reddish-brown tails and a white patch between their eyes and on their muzzles. Males are slightly larger than females.

Yellow-bellied Marmot Habitat


Yellow-bellied Marmot Facts

Yellow-bellied Marmots spend their winters and up to 60 percent of their lives hibernating in burrows underground. They emerge from hibernation each spring. They keep their burrows in very rocky terrain; this helps them avoid predators such as wolves, bobcats and foxes. When they detect a predator near by, they whistle loudly to warn others then take off for the safety of the burrow. That whistling is how they got their colloquial name "whistle pig." Look for them when hiking along rocky trails in the western U.S.

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