Southern Amazon Red Squirrel includes 3 children: Sciurus ( Urosciurus ) spadiceus spadiceus Olfers 1818 Sciurus ( Urosciurus ) spadiceus steinbachi J. In the western and arid parts of its range it is pale grey, and in the eastern localities more brown. Flying squirrels (Glaucomys), ground squirrels (marmotini) and tree squirrels (Sciurus) have some overlap in their diet, but generally eat different things. This species only weighs 200 gram. The red squirrel is native to Britain but is now only found in limited areas of the UK. A. Allen 1914 The population has been in a steep decline since the introduction of the North American grey squirrel. About red squirrels, what they eat, squirrel foods and facts to help you support your local red squirrel population. Tree Squirrel or Smith's Bush Squirrel [Paraxerus cepapi] Appearance The total length is 350 mm, half of which is tail. It’s vital to research the natural history of your squirrel’s specie to understand the primary foods eaten by its wild counterparts. The American red squirrel (Tamiasciurus hudsonicus) is one of three species of tree squirrels currently classified in the genus Tamiasciurus, known as the pine squirrels (the others are the Douglas squirrel, T. douglasii, and Mearns's squirrel, T. mearnsi).The American red squirrel is variously known as the pine squirrel, North American red squirrel and chickaree. Red squirrels can find their buried food in more than 1 foot of snow The Red squirrel is thought to have reached the British Isles via Europe approximately 10,000 years ago, when the last Ice Age came to an end. Healthy Diet for Pet Squirrels Your squirrel needs a balanced diet containing the right amounts of protein, fat, vitamins and minerals. The coat colour varies throughout the region. Red squirrels have two toes and four fingers on each paw.