Gray Squirrel
The name “gray squirrel” can be applied to three different species of squirrel found in North America.
Kingdom - Animalia
Phylum - Chordata
Class - Mammalia
Order – Rodentia
Family – Sciuridae
Genus – Sciurus
Species – S. carolinensis (eastern), S. griesus (western),S. arizonensis (Arizona)
Common Name – Gray Squirrel, Grey Squirrel, Eastern Grey Squirrel, Western Grey Squirrel (also called California Grey Squirrel, Oregon Grey Squirrel, Columbian Grey Squirrel, and Banner-tail), Arizona Grey Squirrel
Gray squirrels are naturally forest dwellers, though they can adapt very well to suburban or urban environments, often found in parks and backyards.
They eat buds, berries, seeds, flowers, acorns, and various nuts, and are known for their habit of hoarding food to store and eat later.
They are very adept at climbing and prefer to travel from tree to tree rather than spending too much time on the ground.
Western gray squirrels are active more during the day, while eastern gray squirrels are more crepuscular, meaning they are most active during the early morning and late evening hours.
Gray squirrel pregnancy lasts for 44 days, and in some cases as many as eight babies may be born to a litter, though the usual number is between one and four.
The gray squirrel gets its name from its fur color, which is grayish or brownish above and white below.
They have large bushy tails, small hands and feet, short faces and large eyes. Their total length, including the tail, can be up to two feet.
The gray squirrel, in particular the eastern gray squirrel, has become a prominent introduced non-native species in many countries and regions throughout the world. It is found in the United Kingdom, Ireland, Italy, and South Africa.
In many areas they were purposefully introduced to parks to enhance the scenery, but quickly spread to other areas. In England, the gray squirrel poses a threat to the native red squirrel, as it lacks the natural predators that would control its population in its native North America.
Both eastern and western gray squirrels are species of Least Concern. The Arizona gray squirrel currently lacks enough data to classify, but it is facing threats due to habitat destruction in its limited range of Arizona and northern Mexico.
References
https://en.wikipedia.org/wiki/Eastern_gray_squirrel
https://en.wikipedia.org/wiki/Western_gray_squirrel
https://en.wikipedia.org/wiki/Arizona_gray_squirrel
Macdonald, David W. (editor). (2006). The Princeton Encyclopedia of Mammals. Princeton, New Jersey: Princeton University Press.
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