Transition from neonatal care into escape-proof developmental housing, species-appropriate social contact and a balanced solid-food foundation without forcing weaning.
Upgrade housing before climbing, digging or gliding makes the old container unsafe.
Eyes open does not automatically mean weaned.
Add natural movement, hiding, foraging and species-normal behavior.
Southern flying-squirrel eyes commonly open at roughly four weeks. Once vision and mobility arrive, the baby can climb, squeeze through gaps and launch unexpectedly. Upgrade housing before the first escape.
Offer solids while formula remains available. The goal is not to replace milk with nuts. Use a nutritionally balanced squirrel/rodent block as the dependable base, then species-appropriate vegetables and wild browse, plus protein/insect foods suitable for flyers. Fruit and nuts can be limited enrichment/foods rather than the nutritional foundation.
Flying squirrels have higher protein needs than a nut-heavy stereotype suggests. Flyer-specific guidance includes insects and other plain animal-protein sources. A diet based on nuts/seeds alone creates serious nutrient imbalance risk.
Southern flying-squirrel weaning age varies across references and individuals. Watch the animal rather than forcing a single calendar deadline. Formula reduction should follow reliable solid intake, normal stool, stable hydration and continuing growth—not a date on the calendar.
Social needs — raise a flying squirrel as a flying squirrel
Flying squirrels are more social than mature tree squirrels and may use communal nests. Keep healthy siblings together. When a permitted rehabilitator has compatible same-species animals, carefully managed introductions can provide species behavior that a human cannot teach.
Social housing does not erase quarantine, parasite, injury or disease concerns. New wildlife should not be combined simply because both animals look lonely.