The Western gray squirrel is a medium-sized rodent native to the western United States. It has a bushy tail and soft gray fur, with a white underbelly. These squirrels are primarily found in forests, woodlands, and urban areas, where they build nests in trees. They are known for their agility and ability to climb. These squirrels primarily feed on nuts, seeds, and fruits, playing a crucial role in forest ecology by helping to disperse seeds. Their population is affected by habitat loss and competition with other species, such as the Eastern gray squirrel. Conservation efforts are important for their survival.