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                American Red Squirrel

                American Red Squirrel

                Red squirrel, Pine squirrel, North American red squirrel, Boomer, Chickaree

                Tamiasciurus hudsonicus
                Population size
                Life Span
                5-10 yrs
                TOP SPEED
                22.5 km/h
                197-282 g
                27-38.5 cm

                The American red squirrel is amongst the smaller of the tree squirrels. Its fur color can be very different, depending on the season and where it lives. Brownish or reddish are the usual colors of the upper parts. In summer, it has a black stripe along its side, which separates the dark upper fur from the creamy or white fur. The squirrel's tail is often edged with white and is not as thick as in other tree squirrels in North America. Its large black eyes are encircled by white bands. This squirrel's compact, muscled body, strong claws, and strong back legs make it good at climbing and running through trees.



                American red squirrels live in most parts of the North American continent, including the southern part of Alaska, most of Canada, coastal British Columbia, the Rocky Mountains, and swampy forests near the Atlantic coast. They live in a variety of forests, including deciduous, coniferous, and mixed forests. They can also make their homes in suburban and urban areas, as long as there are cool, coniferous forests nearby.

                American Red Squirrel habitat map

                Habits and Lifestyle

                Red squirrels are mostly active during the day but sometimes they will be active during the night. In spring and summer their most active periods are mornings and afternoons, but coming into autumn they are very active all day as they get ready for the winter food shortages. Both male and female squirrels will vigorously defend exclusive territories against competitors. Aside from mothers with their young, the red squirrel is a solitary creature. Its nest is called a drey and can be made in different places, such as tree hollows or crotches, or hollows in the ground or in logs. It is very vocal animal, making sounds of chattering, growling and screeching.

                Diet and Nutrition

                The American red squirrel eats acorns, hazelnuts, seeds from other deciduous trees, shoots, berries, fruit, birds' eggs, and mushrooms. It will strip conifer cones for the seeds inside, and sometimes strips tree bark to get to the sap. It also eats mice and young rabbits.

                Mating Habits

                MATING BEHAVIOR
                March-May, August-September
                PREGNANCY DURATION
                33-35 days
                BABY CARRYING
                1-8 kittens
                INDEPENDENT AGE
                7-8 weeks
                FEMALE NAME
                MALE NAME
                BABY NAME
                pup, kit, kitten

                Red squirrels have a fixed breeding season which lasts for 105 days, either once or twice each year. They may mate in early spring between March and May and then for a second time between August and early September. Males compete with other male squirrels for females who are ready to mate. The females mate for only one day in each breeding season, with between 4 to 16 males. The gestation period lasts 33-35 days, and the female gives birth in her drey to a litter of between one and eight young, usually between two and five. For 70 days the mother provides milk for the young, and then they are cast out of the drey to seek their own territory. The young squirrels develop rapidly and are weaned at 7 to 8 weeks. They are sexually mature at the age of 1 year but are still developing.


                Population threats

                In 2008, American red squirrels were classified by the United States government and on the ICUN Red List as Least Concern. There are no major threats to this species. Predators of the red squirrel are raccoons, foxes, weasels, bobcats, coyotes, minks, fishers, owls, hawks, and martens.

                Population number

                American red squirrels face no major threats and are plentiful in number. For most of the areas they inhabit they are not of conservation concern, aside from an isolated population in Arizona which has suffered a major decline in population size, and in 1987, this population was put on the list of endangered species. Currently American red squirrels are classified as Least Concern (LC) on the ICUN Red List and their numbers today remain stable.

                Ecological niche

                American red squirrels can impact tree populations by severely limiting the regrowth of conifers because they consume so many of their seeds. But they also spread the spores of beneficial fungi that enable trees to gain nutrients for their growth, and they plant by accident the seeds of trees while they go about their activities, improving the trees' chances of growing. These squirrels help porcupines during the winter to feed by peeling back the bark of lodgepole pine trees.

                Fun Facts for Kids

                • American red squirrels are good swimmers and will swim across a river to get to the other side.
                • They will sometimes tap sugar maple trees so that they can eat the sugar in the sap. They will bite into the tree trunk, go away until the water in the sap evaporates, and then consume the syrup left on the tree's trunk and branches.
                • These squirrels can be very noisy and have been given the nickname of "chatter boxes".
                • Red squirrels hang fungi such as mushrooms out to dry on tree branches to make it keep better over winter.
                • When collecting food during fall, red squirrels sometimes get covered gum oozing from pine trees.


                1. American Red Squirrel Wikipedia article - https://en.wikipedia.org/wiki/American_red_squirrel
                2. American Red Squirrel on The IUCN Red List site - http://www.iucnredlist.org/details/42587/0

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