  the northern flying squirrel (glaucomys sabrinus) is one of two species of the genus glaucomys, the only flying squirrels found in north america (the other is the somewhat smaller southern flying squirrel, g. volans). unlike most members of their family, flying squirrels are strictly nocturnal. ==habitat and range== the northern flying squirrel is found in coniferous and mixed coniferous forests across the top of north america, from alaska to nova scotia, south to the mountains of north carolina and west to california. populations from the pacific coast of the united states are genetically distinct from those of g. sabrinus found elsewhere in north america, although they are considered to belong to the same species. two subspecies are found in the southern appalachians, the carolina northern flying squirrel, g. s. coloratus, and the virginia northern flying squirrel g. s. fuscus, both of which are endangered, although the virginia subspecies has recovered enough that it was delisted in august 2008.usfws delisting report dated 8/09 in california, the range extends to yosemite valley.lichens in relation to management issues in the sierra nevada national parks, mccune, b., j. grenon, and e. martin, l. mutch, sierra nevada network, cooperative agreement ca9088a0008. oregon state university, corvallis, oregon, and sequoia and kings canyon national parks, three rivers, california,  the u.s. fish and wildlife service put the flying squirrel back under protection on june 6, 2011. ==description== the nocturnal, arboreal rodents have thick light brown or cinnamon fur on their upper body and greyish on the flanks and whitish underneath. they have large eyes and a flat tail. they can also be identified by their long whiskers, common to nocturnal mammals. the adult northern flying squirrel measures from 25 to 37&nbsp;cm long, and their weight can range from 110 to 230&nbsp;grams. ==gliding== [[file:flying squirrel in a tre
Animals_described_in_1801 Flying_squirrels IUCN_Red_List_least_concern_species Mammals_of_Canada Mammals_of_the_United_States Natural_history_of_the_Great_Smoky_Mountains