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www.reference.com/article/squirrels-sleep-c40d7d574917b3f2

There are many different kinds of squirrels, but most squirrels, such as the gray squirrel, red squirrel and fox squirrel, build their dens in the sides of trees while ground squirrels typically dig dens underground. A common squirrel den will be outfitted with moss and...

www.reference.com/article/squirrels-sleep-night-19721b8a16aca72d

The majority of ground and tree squirrels are diurnal, meaning they are active during the day and sleep at night. Flying squirrels, however, tend to be nocturnal and are active at night.

www.reference.com/article/squirrels-sleep-winter-56abc18e29acb56e

Squirrels take refuge in dens and nests in the wintertime. Like humans and many other mammals, squirrels need protection from the harsh winds and elements of winter. Their wintertime shelters vary in size and composition depending on location, but all contain overhead r...

www.reference.com/article/sleeping-habits-deer-4b32ff24b85926d6

The sleeping habits of deer include sleeping in dense grasses, changing head position frequently during sleep, returning to the same place for several days to sleep and being vigilant even during sleep. Deer typically follow a pattern of dozing briefly then becoming ale...

www.reference.com/article/animals-eat-squirrel-49b711190885a402

Some animals that prey on squirrels are raptor birds, coyotes, fishers, weasels, lynx and foxes while predatory birds are hawks, owls, kestrels and eagles. There are different types of squirrels, which include ground, tree and flying squirrels. The main predators of fly...

www.reference.com/article/white-squirrel-6a25690f7db984d

The white squirrel seen in the United States is an albino or white morph of the eastern gray squirrel. Albinism is caused by a mutation of the gene responsible for pigmentation, while the white morph is the product of the aberration of a different gene.

www.reference.com/article/kills-squirrels-475a10fb8f9e54f

According to School for Champions, there are many different predators and other factors that kill squirrels. Some of their natural predators include snakes, weasels, coyotes, red foxes, raccoons, birds of prey, cats, dogs and humans. In addition, many squirrels are kill...