Flying Squirrel Guide

If someone told you there was a small mammal that could glide through the air, fit in your shirt pocket, bond to you like a puppy, and live for over a decade, you would probably think they were exaggerating. They are not. Flying squirrels are all of those things, and keeping them successfully requires understanding exactly what you are getting into before that first adorable baby arrives at your house. This guide covers the practical realities of flying squirrel ownership from start to finish, so you can decide whether this species fits your life before making a commitment that will last a very long time.

The Southern flying squirrel is the species you will most commonly find in the pet trade across the United States. These tiny nocturnal gliders are native to eastern North American forests, where they live in tree hollows and spend their nights leaping between branches using the membrane of skin that stretches between their legs. Everything about their natural history informs how you need to keep them in captivity - they need height, darkness during the day, social contact, and a varied diet that goes well beyond what any single bag of food can provide.

Adults reach roughly five to six inches in body length and weigh just two to three ounces, which makes them among the smallest exotic mammals commonly kept as pets. Do not let the size fool you into thinking the commitment is small too. These animals routinely live ten to fifteen years with proper care, and some individuals have reached their late teens. That is a decade-plus relationship you are starting, and the squirrel will need your attention every single evening of those years.

Flying squirrels are firmly in the advanced keeper category, and that assessment is not meant to discourage anyone - it is meant to prepare you. The combination of specialized diet, nocturnal schedule, bonding requirements, and limited veterinary availability means you need to be the kind of person who researches thoroughly, plans ahead, and follows through consistently. If that describes you, a flying squirrel may become one of the most rewarding animals you have ever kept.

Your flying squirrel's enclosure needs to be tall before it needs to be wide. These are arboreal animals that climb and glide, so vertical space matters more than floor area. The minimum recommended cage for one or two squirrels is about twenty-four inches wide by twenty-four inches deep by thirty-six inches tall, but keepers who have done this for a while will tell you that going bigger makes a noticeable difference in your squirrel's activity level and overall wellbeing. Powder-coated metal cages with half-inch bar spacing work well, as they provide ventilation and climbing surfaces while preventing escapes.

Fill the vertical space with branches, platforms, ropes, and ledges arranged at different heights so your squirrel can climb and leap between levels. Hardwood branches from fruit trees or maple are ideal because they provide natural gripping surfaces and are safe to chew. Avoid pine and cedar entirely. Position a wooden nesting box or fleece pouch near the top of the cage where your squirrel will sleep during the day. Flying squirrels strongly prefer sleeping in high, enclosed spaces, and a nesting box placed at cage-floor level will likely go unused. Providing two or three sleeping options at different heights gives your squirrel choices and helps pairs that occasionally want separate sleeping spots.

Keep the cage in a room that stays between sixty-five and seventy-five degrees Fahrenheit. Flying squirrels tolerate cool temperatures better than warm ones, and heat stress is a genuine risk if the cage sits near a heat vent or in direct sunlight. Since these animals sleep all day, their cage should be in a room that stays reasonably quiet and dim during daylight hours. A spare bedroom or home office often works better than a busy living room.

For bedding, use paper-based products or fleece liners. Cedar and pine shavings are off the table entirely because the aromatic oils cause respiratory problems. Inside nesting boxes, fleece scraps give your squirrel something soft to burrow into. On the cage floor, paper bedding or newspaper makes daily spot cleaning simple.

Enrichment keeps a flying squirrel mentally healthy and physically active. Scatter food throughout the cage to encourage foraging rather than dumping everything in a bowl. Provide an exercise wheel with a solid running surface at least eleven inches in diameter - mesh or wire wheels catch toes. Rotate toys weekly to maintain novelty. Bird toys, wooden chews, and small hanging platforms all work well and keep your squirrel engaged during those long nighttime hours.

Daily spot cleaning and weekly full cage washes keep the environment sanitary. Use warm water and a mild pet-safe cleaner, then rinse thoroughly. Leave a piece of used fleece in the nesting box during full cleans so your squirrel has a familiar-scented item to return to.

Diet is where flying squirrel keeping gets genuinely complex, and it is also where the biggest health consequences hide if you get it wrong. These animals are omnivores in the wild, eating a rotating menu of nuts, seeds, insects, fungi, fruits, and the occasional bird egg depending on the season. Your job in captivity is to replicate that variety, and it takes more effort than most people expect when they first bring a squirrel home.

Start with a quality rodent block or pellet as your dietary foundation. This provides consistent baseline nutrition that your squirrel can access throughout the night. Supplement this daily with fresh fruits and vegetables - think small portions of apple, blueberry, banana, sweet potato, carrot, broccoli, or dark leafy greens. Rotate your offerings so your squirrel experiences variety throughout the week rather than eating the same three items on repeat.

Animal protein is not optional for this species. Flying squirrels need regular access to insects like mealworms, crickets, or waxworms, and you can also offer small amounts of cooked egg or chicken. Aim to provide protein several times per week at minimum. Dust live insects with a calcium supplement before feeding, which addresses two dietary needs at once. Many keepers keep a small container of mealworms in the refrigerator specifically for this purpose, making it easy to grab a few at feeding time without any extra preparation.

Calcium deserves its own conversation because metabolic bone disease is the most common serious health problem in captive flying squirrels, and inadequate calcium is the direct cause. Beyond dusting insects, keep a cuttlebone or calcium block in the cage at all times. Some keepers also add a pinch of calcium powder to soft foods. The calcium-to-phosphorus ratio matters - nuts and seeds are high in phosphorus and low in calcium, which is exactly why they should be treats rather than staples.

Speaking of nuts, your squirrel will act like pecans and walnuts are the greatest things on earth. They are not wrong about the taste, but those foods are fatty and nutritionally unbalanced when fed in excess. A few nuts per day as treats or training rewards is fine. Making them the bulk of the diet is a recipe for obesity and calcium deficiency. The same goes for sunflower seeds - squirrels will pick them out of any mix and ignore healthier options if given the chance, so offer them sparingly and separately from the base diet.

Provide fresh water through a cage-mounted bottle, checking the sipper tube daily for blockages. Some keepers keep a shallow backup dish in the cage as well, especially for younger squirrels still learning to use bottles. Offer food in the evening when your squirrel wakes up, and remove uneaten fresh items the next morning. Keep an eye on food caches hidden around the cage during cleaning - flying squirrels stash food instinctively, and old cached items can spoil. You will find nuts tucked into nesting boxes, behind platforms, and wedged into cage corners with impressive regularity. Clearing these caches during weekly cleaning prevents mold and keeps the enclosure sanitary.

Metabolic bone disease tops the list of health concerns for captive flying squirrels, and it comes down to calcium almost every time. Early signs include wobbliness, reluctance to jump or glide, and general lethargy. Advanced cases involve seizures and fractures from minor activity. The good news is that it is almost completely preventable through proper diet, and early cases respond well to dietary correction and calcium supplementation under veterinary guidance. The bad news is that advanced cases can be irreversible, so catch it early or better yet prevent it entirely.

Respiratory infections are the next most common issue, usually caused by dusty bedding, cedar or pine shavings, drafty cage placement, or bacterial exposure. Symptoms include sneezing, wheezing, nasal discharge, and labored breathing. Flying squirrels are small enough that respiratory infections can become serious quickly, so get to your exotic vet at the first signs rather than waiting to see if it resolves on its own.

Flying squirrels are strictly nocturnal, and their behavior reflects this completely. Expect silence and sleep during the day and a burst of energy, vocalizations, and activity once darkness falls. They communicate through soft chirps, squeaks, and a distinctive ultrasonic call that you may or may not be able to hear depending on the frequency. Nighttime is when they want to eat, play, explore, climb, glide, and interact with you. Trying to force daytime activity disrupts their natural rhythms and causes stress.

These animals are deeply social and suffer from isolation. Wild flying squirrels nest in groups, sometimes twenty or more individuals sharing a single tree hollow. A solo captive squirrel needs substantial human interaction every evening, or it may develop stress behaviors like over-grooming, cage pacing, and self-inflicted wounds. Keeping a bonded pair addresses the social need more naturally and is generally recommended unless you can commit to extensive nightly bonding time.

Locate an exotic veterinarian before you need one. Flying squirrels are not mainstream pets, and not every vet has experience with them. A vet who works with sugar gliders or other small exotics is usually a good fit. Schedule a wellness exam shortly after acquiring your squirrel and annually thereafter.

The bonding experience is honestly what makes flying squirrels worth all the effort. A squirrel that trusts you will sleep in your pocket all day, emerge in the evening to climb your arm, and glide to you from across the room when it hears your voice. That level of connection does not happen automatically though - it is earned through consistent, patient interaction during the critical bonding period and maintained through daily contact afterward.

Bonding works best when you start with a young squirrel between six and eight weeks old. Carry the baby in a fleece pouch against your body during the day, letting it sleep against your warmth and absorb your scent. This mimics the close contact they would have with colony mates in a nest, and it builds an association between your presence and safety. Within the first couple of weeks, most young squirrels start voluntarily emerging from the pouch to explore your hands, pockets, and sleeves. Offer small treats during these explorations to reinforce positive associations.

Older or rehomed squirrels can absolutely bond with new people, but the timeline stretches and requires more patience. Begin by simply being present near their cage during evening hours without forcing interaction. Offer treats through the bars. Once the squirrel accepts food from your hand comfortably, move to brief handling sessions in a small, enclosed room where an escape does not mean losing your squirrel behind the furniture. Some adult squirrels bond within a month while others take several months to develop genuine comfort.

Bites happen, especially early in the bonding process or when a squirrel is startled. Their incisors are sharp, so handle with calm confidence rather than jerky movements that trigger defensive responses. Children under twelve generally should not handle flying squirrels without close adult supervision - the combination of quick squirrel movements and unpredictable child reactions usually does not end well for either party. These animals bond deeply with their primary handler and tolerate others to varying degrees, so set realistic expectations about who in the household will develop the closest relationship with the squirrel.

Flying squirrel keeping comes down to three non-negotiable commitments that you either meet consistently or you should not take on: a properly balanced diet with adequate calcium, a tall enclosure set up for climbing and gliding, and dedicated evening bonding time every single day. These are not suggestions you can scale back once the novelty wears off. Your squirrel will need all three for the entire ten to fifteen years of its life, and the quality of that life depends directly on your follow-through.

The ideal flying squirrel keeper is someone who keeps late hours, enjoys hands-on interaction with their animals, and finds satisfaction in providing complex care rather than finding it burdensome. If you are a night owl who is home most evenings and willing to prepare varied meals rather than just filling a food bowl, you are a good candidate. If your evenings are consistently packed with activities outside the home, this is probably not your species.

The mistakes that cause the most harm are dietary shortcuts and social neglect. Feeding primarily nuts and seeds because your squirrel loves them leads directly to metabolic bone disease. Skipping nightly bonding because you are tired or busy leads to a stressed, fearful animal that bites and hides. Both problems are entirely preventable and both are common enough that they bear repeating in every flying squirrel care resource. Another common error is housing squirrels in cages that are too small or too horizontal. A cage designed for a hamster or guinea pig does nothing for an animal that needs to climb and glide, and cramped quarters lead to boredom, stress, and health problems over time.

Check your local and state laws before acquiring a flying squirrel. Regulations vary significantly across jurisdictions, and some states prohibit ownership entirely while others require specific permits or licenses. Getting this wrong is not a minor inconvenience - it can mean confiscation of your animal. Do the research first and keep documentation of legal acquisition on hand.

When everything is done right, keeping a flying squirrel is unlike any other small mammal experience. The bond you develop with a well-socialized squirrel has a depth and reciprocity that surprises people who have never seen it. Your squirrel learns your voice, your scent, your schedule. It waits for you at the cage door in the evening. It glides to your hand with complete trust. That relationship is built on every evening you showed up, every balanced meal you prepared, every calcium-dusted mealworm you offered.

If you have read this far and you are still interested, take the next steps carefully. Find a reputable breeder who handles their babies from a young age, set up the enclosure completely before the squirrel arrives, locate an exotic vet, stock your kitchen with the variety of foods your squirrel will need, and clear your evening schedule for bonding. The preparation matters as much as the daily care, and flying squirrels reward the keepers who do both well.