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Grey Squirrel

What is grey squirrel?

· Sarah Mitchell

Key facts

Scientific name Sciurus carolinensis[1]
Family Sciuridae[1]
Origin Native to North America[1]
UK introduction 19th century[1]
Habitat Woodland and urban areas[1]
Diet Nuts, seeds, and berries[1]

The grey squirrel is a tree squirrel native to eastern North America, scientifically known as Sciurus carolinensis. It was introduced to the UK in the 19th century and is now an invasive species there.

Context

The grey squirrel, or eastern gray squirrel, is a tree squirrel in the genus Sciurus, native to North America and introduced to the UK in the 19th century [1]. In the UK, it is considered an invasive species and is found in woodland and urban areas [2]. It is often discussed alongside the red squirrel, which it outcompetes [3].

Documented claims

  • The grey squirrel is an invasive non-native species in the UK. [2]
  • It is often confused with the red squirrel, which it outcompetes in Britain. [3]

Questions and answers

Are grey squirrels native to Canada?

Yes, grey squirrels are native to eastern North America, which includes parts of Canada [1].

What is the difference between a squirrel and a grey squirrel?

A grey squirrel is a specific species of squirrel, Sciurus carolinensis, while 'squirrel' refers to the broader family Sciuridae [1].

How rare is it to see a gray squirrel?

Grey squirrels are common in their native range and in the UK, where they are widespread [1].

Sources

  1. Gray Squirrel — esf.edu (retrieved August 3, 2026)
  2. Eastern Gray Squirrel - Big Thicket National Preserve (U.S. ... — nps.gov (retrieved August 3, 2026)
  3. 10 facts about grey squirrels — southwickcountrypark.com (retrieved August 3, 2026)

Sources last checked August 3, 2026. · More in Things