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Baby squirrels huddled together in wildlife rehab care
🐿️ Wildlife Care Guide

What Do Baby Squirrels Eat?
Complete Feeding & Care Guide

From newborn kits to independent foragers — everything you need to know to help a baby squirrel survive.

Quick Answer

Baby squirrels should never be fed cow's milk, goat's milk, almond milk, soy milk, or human baby formula. These cause fatal diarrhea and dehydration within 24–48 hours. The only safe option is Esbilac Puppy Milk Replacer in powder form — the same formula licensed wildlife rehabilitators use.

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Feed 5–7% of body weight every 2–3 hours, warmed to 95–100°F. Exact dosing by age is in the feeding chart below.

Based on wildlife at our 30 acre habitat

5–7% Body weight per feeding
2–3 hrs Feeding interval
95–100°F Safe warmth range
8–10 wks Ready for wild diet

Baby squirrels — often called kits or pups — are among the most endearing creatures in the wild. With their tiny bodies, fluffy tails, and curious eyes, they capture the hearts of nature enthusiasts everywhere. At Private Lands Wildlife, we're passionate about supporting these little animals on private properties. In this comprehensive guide, we'll cover everything you need to know about baby squirrels — from their early life stages to what to feed them at every age.

What do baby squirrels eat?

One of the most common questions about these tiny mammals is, "What do baby squirrels eat?" In the wild, their diet evolves as they grow. Newborns feed exclusively on mother's milk, which is rich in fats, proteins, and antibodies to build their immune systems. This milk provides all the hydration and nutrients needed for the first month.

As they transition to solid foods around 7 to 8 weeks, baby squirrels start nibbling on soft items like buds, flowers, and young leaves. Gradually, they incorporate nuts, seeds, fruits, and insects into their diet. Acorns, walnuts, and sunflower seeds become staples, offering the energy required for their active lifestyles.

It's important to note seasonal variations. In spring and summer, fresh greens and berries dominate, while fall focuses on nut storage for winter. If you're observing baby squirrels in your yard, providing a bird feeder with unsalted nuts can supplement their diet without disrupting their instincts — just avoid overfeeding to prevent dependency.

What Does a Baby Squirrel Look Like?

Baby squirrels look dramatically different depending on their age. Knowing what stage a kit is in helps you understand exactly what it needs.

Baby squirrels huddled together in wildlife rehab care

Photo: CritterAid Wildlife Rescue

At birth (1–2 weeks): Completely hairless, pink skin, eyes and ears sealed shut. About the size of a human thumb. Completely helpless and entirely dependent on mother's milk.

At 3 weeks: A thin layer of soft fur begins to appear. Still eyes closed. Skin color fades from bright pink to a softer gray-brown as fur fills in.

At 5 weeks: Eyes just beginning to open. Fully furred but small. Ears are open. Starting to look like a miniature squirrel for the first time.

At 6–8 weeks: Eyes fully open, bushy tail starting to develop, beginning to explore and climb. This is when most people find baby squirrels on the ground.

At 10 weeks: Looks nearly identical to an adult but smaller. Fully independent and ready for the wild.

Three week old baby squirrel, fully furred with eyes still closed Not sure which stage yours is? Baby Squirrel Age Chart — Week by Week Real photos of every stage from newborn to eight weeks. Match yours to the pictures and pin the age down in minutes — the age decides everything about what it can eat.

Baby squirrel food list

Here's what to feed a baby squirrel based on their age:

AgeWhat to FeedWhat They Look Like
1–2 week oldEsbilac puppy milk replacer onlyEyes closed, no fur, pink skin
3 week oldEsbilac puppy milk replacer onlyEyes closed, light fur appearing
5 week oldFormula + soft fruits (apple, pear)Eyes just opening, fully furred
6 week oldFormula + soft fruits and veggiesEyes open, starting to explore
8 week oldNuts, seeds, fruits, veggiesActive, climbing, bushy tail
10 week oldFull wild diet — ready for releaseFully independent, foraging on own

What to feed a baby squirrel with eyes closed

If a baby squirrel's eyes are still closed, it's under 5 weeks old and needs formula only — never solid food.

💧 Check for Dehydration First — Before Any Feeding Before offering formula, always check if the baby is dehydrated. Gently pinch the skin on its back — if it stays tented instead of snapping back immediately, the kit is dehydrated. A dehydrated squirrel cannot handle formula. Give a few drops of unflavored Pedialyte every 30 minutes for 1–2 hours first, then transition to Esbilac formula once the skin test returns to normal.
⚠️ Stimulation Required for Kits Under 5 Weeks Baby squirrels under 5 weeks old cannot urinate or defecate on their own. Before and after every feeding, gently stimulate the genital and anal area with a warm, damp cotton ball or cloth using small circular strokes. Do this until the kit eliminates. If you skip even one feeding, the kit can develop a bladder infection or become fatally constipated.
✅ Safe Formula Use Esbilac puppy milk replacer mixed with warm water. Feed 5–7% of body weight every 2–3 hours using a small syringe. Keep the baby warm (95–100°F) and contact a licensed wildlife rehabilitator as soon as possible.
🚫 Never Feed These Cow's milk, almond milk, or human baby formula — these cause digestive problems and can be fatal within hours.

Can squirrels drink milk?

No — never feed baby squirrels cow's milk, almond milk, goat's milk, or human baby formula. These cause severe digestive problems including bloating, diarrhea, and dehydration that can be fatal within hours.

Goat's milk is a common mistake. Many people assume it's a gentler alternative, but the fat and protein ratios do not match what baby squirrels need. The same goes for oat milk, soy milk, and any store-bought milk product.

Why can't squirrels drink milk?

Baby squirrel being syringe-fed formula by a wildlife rehabilitator

Photo: CritterAid Wildlife Rescue

The only safe milk for baby squirrels is Esbilac puppy milk replacer mixed with warm water. Esbilac closely mimics the fat and protein content of squirrel mother's milk and is the formula used by licensed wildlife rehabilitators across the country. You can order Esbilac here — it ships next day with Prime.

💧 No Esbilac Yet? If you find an orphaned baby squirrel and don't have Esbilac, offer a few drops of unflavored Pedialyte first for hydration — never plain water, which can cause aspiration. Then get Esbilac as soon as possible and contact a licensed wildlife rehabilitator.

What kind of milk do you feed baby squirrels?

The only answer is Esbilac puppy milk replacer. Below are the exact products wildlife rehabilitators recommend — in the order you'll need them.

🐿️ Wildlife Rehabilitators Recommend
Everything You Need to Save a Baby Squirrel

The exact supplies licensed rehabilitators use — in the order you'll need them.

🌡️ Step 1 — Warmth
SnuggleSafe Heating Pad

Microwaveable heat disk that stays warm for up to 10 hours with no cords and no auto-shutoff risk. Wrap in a towel and place under half the box so the kit can move away if too warm.

⚠️ Never use a heating pad that auto-shuts off — a kit that loses heat overnight will not survive until morning.

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💧 Step 2 — Hydration
Unflavored Pedialyte

Always check for dehydration before offering formula. Pinch the skin on the back — if it tents, give a few drops of unflavored Pedialyte every 30 minutes for 1–2 hours first.

💡 Keep a bottle on hand before you need it — dehydration is the thing that kills a kit fastest, and it never happens at a convenient hour.

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🍼 Step 3 — Formula
Esbilac Puppy Milk Replacer

The only safe formula for orphaned baby squirrels. Used by licensed wildlife rehabilitators across the country. Closely matches the fat and protein content of squirrel mother's milk.

🚫 Never substitute cow's milk, goat's milk, or human baby formula — these cause fatal digestive failure within hours.

Order Now — Prime Ships Tomorrow →
💉 Step 4 — Feeding
Pet Nursing Syringe Kit

Precise flow control is critical — a syringe that sticks or flows too fast causes aspiration pneumonia, which is almost always fatal. Use a quality kit and replace if it becomes stiff.

💡 Hold the kit upright at a slight angle and let it suckle at its own pace. Never squeeze formula directly into the mouth.

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Baby squirrel care tips

Proper baby squirrel care begins with respecting their wild nature. At Private Lands Wildlife, we advocate for minimal intervention to promote healthy ecosystems on private lands. If you're caring for an orphaned kit, consult a licensed wildlife rehabilitator first. Handling them without expertise can cause stress or transmit diseases.

For supportive care, start by creating a safe environment. Use a quiet, warm box lined with soft cloths (avoid towels with loops that could snag claws). Maintain a temperature of 95–100°F for newborns using a heating pad on low, wrapped in a towel to prevent burns. Offer pediatric electrolyte solution like Pedialyte via a syringe — never cow's milk.

As they grow, introduce a balanced diet mimicking their natural one. Feed every 2–3 hours for the youngest, tapering off as they age. Monitor weight gain — kits should double their birth weight (about 15–20 grams) in the first week.

⚠️ Legal Notice In most states it is illegal to keep or raise wild squirrels without a permit — even with the best intentions. Always check your state wildlife agency regulations. Attempting to keep a baby squirrel as a pet can result in fines and is harmful to the animal's natural development.
William Billy Gruett and The Witness Tree book cover — true story of Michigan's Chippewa mail carrier

📖 The Story Behind Our Mission

Enjoyed learning about baby squirrels? Dive into the true story that inspired Private Lands Wildlife — Billy Gruett, the 16-year-old Chippewa mail carrier who braved Michigan's wilderness in the 1850s. His legacy shaped our commitment to wildlife habitat.

What to feed baby squirrels: step-by-step

Age determines everything. For kits under 5 weeks (eyes closed), stick to formula. Mix Esbilac powder with warm water to a creamy consistency, feeding 5–7% of body weight per session. Use a pet nursing bottle or syringe for controlled delivery to avoid aspiration.

Once eyes open around 5–7 weeks, introduce solids slowly. Start with softened fruits like apples or pears, pureed if needed. Add vegetables such as broccoli or carrots. Nuts should be shelled and unsalted — pecans and hazelnuts are favorites.

By 8–10 weeks, expand to a varied diet: 50% nuts/seeds, 30% fruits/veggies, 20% proteins like mealworms. Always offer fresh water in a shallow dish. Avoid bread, chocolate, or processed foods.

Feeding tips for baby squirrels

One of the most important things to remember is that baby squirrels cannot drink regular milk of any kind. Cow's milk, goat's milk, and almond milk are all dangerous. Only Esbilac puppy milk replacer should be used as a formula substitute.

If you're supplementing wild baby squirrels, scatter food naturally to encourage foraging. This not only answers what to feed baby squirrels but also promotes their survival skills.

How to feed a baby squirrel

Before you attempt to feed a baby squirrel, wrap it gently in a soft fleece or flannel blanket. A cold squirrel cannot digest food properly — warming it up first is not optional, it's the first step.

✅ Proper Feeding Position Hold the wrapped kit upright or at a slight angle, never on its back (this can cause formula to enter the lungs). Use a small syringe and allow the squirrel to suckle at its own pace — never squeeze formula directly into its mouth. Watch for bubbling around the nose — a sign of aspiration. If you see bubbling, stop immediately and hold the kit upright.

Found a baby squirrel? What to do next

First, assess the situation: Is it injured, cold, or covered in flies? If yes, intervention is needed. If not, watch from a distance — mom often returns within a few hours.

If the kit is truly orphaned, gently pick it up using gloves or a soft towel, place it in a warm, secure box with a fleece liner (no terry cloth loops), and keep it quiet. Do NOT attempt to feed it yourself yet.

📞 Get Help Immediately Contact a licensed wildlife rehabilitator through the U.S. Fish & Wildlife Service directory: fws.gov — these are the only people legally trained and permitted to care for native wildlife.

For prevention, secure trash bins and trim branches near power lines to reduce nest falls. Installing squirrel boxes on your property can provide safe nesting spots, reducing the chance of finding displaced kits.

Free build plans Squirrel House Plans & Cut List A nest box on your property gives a litter somewhere safe to be born — and it is the single best way to stop finding kits on the ground. Free plans, dimensions and placement.

Special Spotlight: Baby Flying Squirrels

While most people think of ground or tree squirrels, baby flying squirrels deserve a mention. These nocturnal gliders are found in forests across North America, born in litters of 2–7 in tree cavities or nests. Like their cousins, they start with mother's milk, transitioning to nuts, seeds, and insects. Their care is similar but requires more vertical space for gliding practice. Their membrane wings make them unique — handle with extra care to avoid damage.

Health and common issues for baby squirrels

Baby squirrels face threats like predators, parasites, and malnutrition. Watch for signs of distress: lethargy, diarrhea, or wounds. Fleas and mites are common; a vet can recommend safe treatments.

🦴 Metabolic Bone Disease (MBD) — A Silent Killer MBD is caused by calcium deficiency from an improper diet and is one of the most common causes of death in hand-raised squirrels. Early signs include low activity, poor appetite, and labored breathing. Advanced cases cause seizures, paralysis, and death. Prevent it by using only species-appropriate formula like Esbilac, never cow's milk or cat/dog formula, and providing UV light or sun exposure as the squirrel grows. If you suspect MBD, remove all nuts and seeds immediately and contact a wildlife rehabilitator.

Nutritional deficiencies like MBD can be prevented with a balanced diet. In rehabilitation, regular vet check-ups ensure they're on track.

When Do Baby Squirrels Leave the Nest?

Baby squirrels typically leave the nest for the first time between 10 and 12 weeks old. At this stage they are fully furred, their bushy tail is developed, and they are strong enough to climb and forage on their own. However, "leaving" is gradual — they don't disappear overnight.

From weeks 10–12 you'll see them venturing out of the nest for short trips, staying close to the nest tree. By weeks 12–14 they are spending more time out than in. Full independence usually happens around 14–16 weeks when they are actively foraging, burying food, and no longer returning to the nest regularly.

🌳 Found a Baby Squirrel on the Ground? If a squirrel appears to be 10–12 weeks old (fully furred, eyes open, bushy tail) and you find it on the ground, it is likely just beginning to explore. Watch from a distance — the mother is almost certainly nearby. Only intervene if the squirrel is injured, being attacked, or has been on the ground for more than a few hours with no sign of the mother.

Squirrels born in the first litter (February–April) will typically be independent by July. Second litter kits born in late summer (August–September) will reach independence by November before winter sets in. If you're raising an orphaned kit, never release before 14 weeks and always do a soft release — leave the cage open in a safe outdoor spot for several days so the squirrel can come and go at its own pace before fully departing.

Common Mistakes When Caring for Baby Squirrels

These mistakes are made over and over by well-meaning people. Any one of them can be fatal.

🚫 Heating Pad That Auto-Shuts Off Most store-bought heating pads turn off automatically after 2–3 hours. A kit that loses heat in the middle of the night will chill and die. Use a heating pad specifically designed to stay on continuously, wrapped in a towel so the squirrel can move off if too warm.
🚫 Weaning Off Formula Too Soon Baby squirrels should stay on formula until at least 14–16 weeks old. Many people cut formula too early when the squirrel starts eating solids. Formula provides essential nutrition during critical development — never cut it off while the squirrel is still accepting it.
🚫 Introducing Nuts and Fruits Before Vegetables Squirrels love nuts and sweet fruits but these should come last, not first. Start with formula, then introduce vegetables. A squirrel that gets spoiled on treats early will refuse to eat healthy foods and develop nutritional deficiencies.
🚫 Household Pets Near the Baby Even the most gentle dog or cat will kill a baby squirrel. The stress alone from a pet's presence can cause fatal shock. Keep the kit in a completely separate room with the door closed at all times.
🚫 Cheap Syringes That Stick A syringe that doesn't flow smoothly can cause you to accidentally force formula into the kit's lungs, leading to aspiration pneumonia which is almost always fatal. Use a quality pet nursing syringe kit and replace it if it becomes stiff or sticky.

Conservation and How You Can Help

At Private Lands Wildlife, we believe private landowners play a key role in squirrel conservation. Planting nut trees, avoiding pesticides, and creating habitats boost populations. Simple actions like leaving leaf litter for nesting materials or installing feeders make a difference.

Want to help? Support our wildlife habitat work — your donation helps us create safe spaces for squirrels, owls, and other wildlife on our 30-acre conservation property in Michigan.

Frequently Asked Questions About Baby Squirrels

What do baby squirrels eat in the wild?
Newborn squirrels drink only their mother's milk for the first 5–6 weeks. As they grow, they transition to soft foods like flower buds and young leaves, then gradually add nuts, seeds, fruits, and insects to their diet. Acorns, walnuts, and sunflower seeds become staples as they mature.
When do squirrels have babies?
Most squirrels have two breeding seasons per year. The first litter is born in late winter to early spring (February–April), and a second litter may arrive in late summer (August–September). Litters typically contain 2–5 baby squirrels.
How do you care for a baby squirrel you found?
First, make sure it's truly orphaned — watch from a distance for a few hours as mothers often return. If the baby is injured, cold, or truly abandoned, place it in a warm box lined with soft cloth and contact a licensed wildlife rehabilitator immediately. Do not attempt to feed it cow's milk.
How can you tell how old a baby squirrel is?
Age can be estimated by physical features: eyes closed means under 5 weeks old; eyes open with thin fur is 5–6 weeks; fully furred with bushy tail developing is 6–8 weeks; and active climbing and exploring indicates 8–10 weeks old.
Can you keep a baby squirrel as a pet?
No — in most states it's illegal to keep wild squirrels without a permit. Baby squirrels need specialized care and must learn survival skills from their mothers or trained rehabilitators. Keeping them as pets is harmful to their development and can result in fines.
Can squirrels drink milk?
No. Cow's milk, goat's milk, almond milk, and human baby formula are all dangerous for baby squirrels and can cause fatal digestive problems. The only safe milk substitute is Esbilac puppy milk replacer, which matches the fat and protein content of squirrel mother's milk. If you find an orphaned baby squirrel, offer Pedialyte for hydration first, then Esbilac formula, and contact a wildlife rehabilitator as soon as possible.
What do you feed a baby squirrel with eyes closed?
A baby squirrel with eyes closed is under 5 weeks old and needs Esbilac puppy milk replacer only — never solid food, cow's milk, or human baby formula. Mix Esbilac powder with warm water, feed 5–7% of body weight every 2–3 hours warmed to 95–100°F using a small pet syringe. Before and after every feeding, gently stimulate the genital area with a warm damp cotton ball — kits this young cannot urinate or defecate on their own. Always check for dehydration first using the skin pinch test. If dehydrated, give unflavored Pedialyte before formula. Contact a licensed wildlife rehabilitator immediately.

Teach Your Kids About Wildlife

The Whispering Woods The Hidden Door children's wildlife book cover

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Love sharing nature with your children? Join Elara and Scout as they discover the secrets of the natural world — the same world where baby squirrels, raccoons, and birds are raising their families right now. Perfect for ages 7–12.

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Want to Know Everything About Squirrels?

Types of squirrels, what they eat, do they hibernate, baby squirrels, black squirrels, squirrel houses and feeders — all in one complete guide from our 30-acre Michigan wildlife habitat.

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