Are There Flying Squirrels in Massachusetts?

Where Flying Squirrels Are Found in Massachusetts

Flying squirrels inhabit forests across all of Massachusetts, with populations ranging from coastal areas to the Berkshire Mountains. The Connecticut River valley contains healthy populations in both deciduous and mixed forests. Cape Cod and southeastern Massachusetts support Southern Flying Squirrels in oak-dominated woodlands. The Berkshire region in western Massachusetts hosts both species, with Northern Flying Squirrels more prevalent at higher elevations. Central Massachusetts forests, including areas near the Quabbin Reservoir and surrounding watersheds, support strong populations. The Boston area and suburban woodlands contain flying squirrels, particularly where large mature trees persist. Mount Greylock and other high elevation forests in the west favor Northern Flying Squirrels. The Merrimack River valley and its tributary systems provide corridors for flying squirrels throughout northern Massachusetts. Metropolitan green spaces and town forests often harbor small populations despite urban proximity. For more on flying squirrel in Massachusetts, see ourMassachusetts flying squirrel guide.

Season and Timing in Massachusetts

Flying squirrels in Massachusetts are active year-round, though their visibility increases during certain seasons. Winter is prime time for detecting them, as snow reveals their tracks and movements. Breeding occurs in early spring, with females producing one or sometimes two litters between March and August. Young squirrels disperse by late summer and fall, establishing their own territories. Fall activity intensifies as squirrels gather and cache food before winter. Winter dormancy is not true hibernation, meaning they remain periodically active during milder weather spells. The spring thaw prompts increased movement and foraging as stored food caches deplete. Mating calls and vocalizations increase during breeding season in spring and early summer. Temperature fluctuations common in Massachusetts trigger seasonal changes in activity patterns and den usage. You can also browseMassachusetts wildlife.

How to Identify Flying Squirrels

Flying squirrels are Massachusetts' smallest tree squirrels, weighing just 2 to 3 ounces. Their defining feature is the furry gliding membrane extending between their front and hind legs, visible only during flight. The fluffy, flattened tail serves as a rudder and brake during glides. Their fur is soft and cinnamon-brown on the back with white underparts. The eyes are notably large and forward-facing, an adaptation for nocturnal vision. Compared to gray and red squirrels, they are much smaller and move with quick, jerky motions. Their ears are small and rounded, lacking the prominent tufts seen on other species. When resting on branches, they crouch close to the trunk rather than sitting upright. The gliding membrane cannot be observed when stationary, so identification requires seeing them glide or noting their distinctive behavior. See all of ourwildlife guides.

Where Sightings Concentrate in Massachusetts

Flying squirrel sightings concentrate in mature deciduous and mixed forests with abundant cavity trees. The Connecticut River valley, particularly in central and western regions, offers excellent habitat. The Quabbin Reservoir area contains ideal forest conditions with numerous den trees. Mohawk Trail State Forest and surrounding Berkshire woodlands provide consistent flying squirrel populations. The Blue Hills west of Boston contain observable populations within reasonable driving distance from urban centers. Morton Arboretum area and similar well-established forest preserves support small populations. Old-growth forest remnants throughout central Massachusetts harbor squirrels despite fragmentation. Suburban areas with mature oak and hickory forests, particularly in Worcester County and beyond, frequently host gliders. The state forests along the western border, near New York, provide excellent habitat for both species. Wooded suburban neighborhoods with connected green space corridors often harbor breeding populations. OurMassachusetts wildlife guidecovers more species you may run into.

Typical Behavior of Flying Squirrels

Flying squirrels are strictly nocturnal, spending daylight hours in tree cavities, woodpecker holes, or leaf nests. They are almost never observed during the day, making nighttime the only practical observation time. At dusk, they emerge to forage for seeds, acorns, nuts, berries, and insects. Seasonal diet shifts favor hickory and oak nuts in fall and fungal fruiting bodies in spring and summer. Food caching in fall provides sustenance throughout winter and early spring. Gliding allows them to cover 50 feet or more horizontally while losing minimal elevation. This energy-efficient travel method conserves calories compared to climbing. They are social during breeding season but mostly solitary or in family groups otherwise. Vocalizations include high-pitched chirps and squeaks, though they vocalize far less than daytime squirrels. Nest construction from leaves and bark demonstrates their intelligence and behavioral complexity. Read more aboutflying squirrel in Massachusetts.

Coexistence and Safety Notes

Flying squirrels pose no risk to people and are protected under Massachusetts wildlife regulations. They do not transmit rabies and are far too small to bite defensively. These animals are extremely fragile with delicate bones and will always avoid contact. No special precautions are needed for outdoor activities in flying squirrel habitat. Attic intrusions are rare but can occur; open windows to allow voluntary departure. If trapping becomes necessary, extreme gentleness is required to avoid harming the animal. Never attempt to relocate trapped squirrels without proper permits and wildlife handler assistance. Maintaining mature trees and preserving dead wood benefits flying squirrel populations substantially. Creating habitat corridors through connected forest patches supports long-term population viability. Flying squirrels indicate healthy, mature forest ecosystems and serve as bioindicators of woodland quality. Browsewildlife in Massachusettsfor related pages.

Species Confusion and Similar Animals

Flying squirrels are rarely misidentified due to their unique size and gliding ability. Northern and Southern Flying Squirrels coexist in Massachusetts but cannot be reliably distinguished in the field without close observation or capture. Subtle differences in size and coloration require expert assessment. Sugar gliders, exotic pets that occasionally escape, are sometimes reported but never establish in Massachusetts. Bats observed gliding at night are never confused with flying squirrels once their flight pattern is noted. Flying squirrel nests are sometimes mistaken for bird nests, but their construction and placement differ significantly. Mistaken reports sometimes involve jumping mice or other small mammals, but none glide. The combination of small size, tree-climbing behavior, gliding ability, and nocturnal activity makes genuine misidentification unlikely. Only direct observation or photography can definitively confirm flying squirrel identity.

Frequently Asked Questions

Where can I see flying squirrels in Massachusetts? Visit mature forests during nighttime hours, particularly in the Berkshires or Quabbin region. Listen for sudden movements and watch tree trunks after dusk. The Connecticut River valley offers accessible habitat.

Are both species found in Massachusetts? Yes, both Southern and Northern Flying Squirrels occur in the state. Southern species are more common and widespread, while Northern species dominate higher elevations and northern regions.

What do flying squirrels eat? They consume acorns, hickory nuts, seeds, berries, fungi, and insects. Diet varies seasonally, with mast crops dominating fall and fungi more prevalent in spring.

Do flying squirrels cause property damage? No, they cause far less damage than regular squirrels or other wildlife. They rarely enter buildings and do not gnaw wood or wiring like other squirrels.