This simple example demonstrates that flocks are not only seen in bird species or a herd of sheep, but it is also apparent in other animals such as rodents. This alarm call of the ground squirrel requires the ability of the animal to first recognize that there is danger present and then to react.
A basic example illustrates that flocks encompass more than just birds or a herd of sheep; they are also observed in other creatures like rodents. The alarm call of the ground squirrel requires it to initially identify potential threat and subsequently react accordingly.