Marmots are large ground squirrels that belong to the genus Marmota. They are herbivores and are active during the summer, when they can often be found in groups.

They are characterized by their short but robust legs, enlarged claws, which are well adapted to digging, stout bodies, and large heads and incisors to quickly process a variety of vegetation.

They live in small colonies with a total of 30 marmots housed close together in a cluster of burrows.

Here is why they scream the loudest:
Marmots do scream when they are in extreme fear or when they have spotted a predator that is ready to attack them. (It is like a call to seek shelter).

This scream can be compared to a human scream. They mainly use screams to warn their colony. This very sound helps to connect them to their colony. It keeps chirping, and that becomes a one-time louder call when the danger is closer to them. It can be called ‘marmot communication in danger’.

Likewise, you may find people asking, Why do marmots scream at night? It is not a usual thing, and it is also not for avian predators. It is often seen that snake and reptile predators come out hunting at night. If they see the hunters nearby and get frightened, they scream. Any time they go outside, they ensure that they are on guard because they might end up being other predators lunch.

Producing noise is a natural behavior of ground squirrels. They are either seen chirping all the time like birds or whistling.