Found A Baby Squirrel? Online Assessment Tool

Important information will appear in this section as you complete each of the steps.
Characteristics
  • Age is approximately 1 To 6 Days (Newborn)
  • Naked with pink skin
  • Weighs 13 to 21 grams. 13 to 18 grams at birth.
  • Umbilicus still attached at 4 days
  • Eyes sealed closed
  • Ears closed and flat
  • Is nursing every one and a half hours, including nighttime
  • Needs supplemental heat (incubator)
  • Sleeps the majority of the time but becomes squirmy when touched.
  • Development stage is comparable to a preemie or newborn human baby.
Characteristics (one week)
  • Age is approximately 7 To 13 Days
  • Skin tone is darkening from pink to brown (at 7-10 days of age)
  • Weighs 13 to 21 grams. 22 to 35 grams at birth.
  • Umbilicus still attached at 4 days
  • Eyes sealed closed
  • Ears closed and flat
  • Is nursing every two hours, including nighttime
  • Needs supplemental heat (incubator)
  • Sleeps the majority of the time but becomes squirmy when touched.
  • Development stage is comparable to a preemie or newborn human baby.
Characteristics
  • 14 To 20 Days (Two Weeks)
  • Very short velvety fur begins developing on back
  • Weighs 35 to 50 grams
  • Eyes closed
  • Ears flat
  • Is nursing every two and a half hours
  • Needs supplemental heat (incubator)
  • Sleeps the majority of the time but becomes squirmy when touched.
  • Development stage is comparable to a three month old human baby.
Characteristics
  • 21 To 27 Days (3 Weeks)
  • Beginning to become completely covered with short fur
  • Top of tail is furred at 3 weeks.
  • Weighs 50 to 75 grams
  • Eyes sealed or beginning to open; has "sleepy eye" appearance at beginning of 4 weeks.
  • Ears flat but opening at 3 weeks
  • Lower teeth begin to emerge at 3 weeks.
  • Is nursing every three hours
  • Needs access to supplemental heat if chilled (incubator then transitioned to indoor cage)
  • Wobbly/shaky when crawling inside of nest.
  • Development stage is comparable to an eight month old human baby.
Characteristics
  • 28 To 34 Days (4 Weeks)
  • Completely covered with short fur
  • Weighs 75 to 125 grams
  • Eyes sealed or beginning to open; has "sleepy eye" appearance at beginning of 4 weeks.
  • Ears open and beginning to lift at 4 weeks
  • Upper teeth begin to emerge at 4 weeks.
  • Is nursing every four hours
  • Needs access to supplemental heat if chilled (incubator then transitioned to indoor cage)
  • Wobbly/shaky when exploring inside of nest.
  • Development stage is comparable to an eight month old human baby.
Characteristics
  • 35 To 41 Days (Five Weeks)
  • Soft fuller coat of thicker fur beginning to develop
  • Both top and bottom of tail is furred at 6 weeks.
  • Weighs 125 to 175 grams
  • Eyes open
  • Ears standing upright
  • Upper and lower teeth have emerged
  • Can lap formula from a bowl and beginning to wean onto solid foods
  • Needs protection from cold (nest or indoor cage)
  • Trying to sit upright but wobbly
  • Tail not yet curling
  • Fairly active. In the wild, it would begin peeking out of its nest and possibly exploring within a foot or two away from the nest.
  • Development stage is comparable to human toddler.
Characteristics
  • 42 To 48 Days (Six Weeks)
  • Soft fuller coat of thicker fur beginning to develop
  • Bottom of tail is furred at 6 weeks.
  • Weighs 175 to 225 grams
  • Eyes open
  • Ears standing upright
  • Upper and lower teeth have emerged
  • Can lap formula from a bowl and beginning to wean onto solid foods
  • Needs protection from cold (nest or indoor cage)
  • Beginning to sit upright
  • Tail begins to curl
  • Fairly active. In the wild, it would begin peeking out of its nest and possibly exploring within a foot or two away from the nest.
  • Development stage is comparable to human toddler.
Characteristics
  • (Seven Weeks)
  • Full coat of thick fur
  • Weighs 225 to 250 grams
  • Eyes open
  • Ears standing upright
  • Upper and lower teeth have fully emerged
  • Fully weaned onto solid foods
  • Begins transition from indoor to outdoor cage with nestbox.
  • Beginning to sit upright
  • Extremely active. In the wild they are coming out of the nest regularly under their mother's supervision (fieldtrips). At this stage their mother is teaching them how to forage for food and identify predators.
  • Development stage is comparable to 5 year old human child.
Characteristics
  • Eight Weeks
  • Full coat of thick fur
  • Weighs 250 to 275 grams
  • Eyes open
  • Ears standing upright
  • Upper and lower teeth have fully emerged
  • Fully weaned onto solid foods
  • Begins transition from indoor to outdoor cage with nestbox.
  • Beginning to sit upright
  • Extremely active. In the wild they are coming out of the nest regularly under their mother's supervision (fieldtrips). At this stage their mother is teaching them how to forage for food and identify predators.
  • Development stage is comparable to 5 year old human child.
Characteristics
  • Nine To Ten Weeks
  • Full coat of thick fur
  • Weighs 250 or more grams
  • Eyes open
  • Ears standing upright
  • Upper and lower teeth have fully emerged
  • Fully weaned onto solid foods
  • Begins transition from indoor to outdoor cage with nestbox.
  • Extremely active. Regularly exploring outside of their nest, either alone or under their mother's supervision (fieldtrips).
  • Development stage is comparable to a teenage human.
Characteristics
  • Ten To Twelve Weeks
  • 325 grams or more in weight (will acheive adult weight at 8 months).
  • Completely independent of mother but may remain at or near nesting site. Practices nest building skills.
  • Development stage is comparable to a young adult human.
Based on your selection, this mammal appears healthy and may be a candidate for renesting and/or reuniting with its mother, based on your responses to additional questions. Wildlife have a far better chance of survival when raised by their own species.

Based on your selections, this mammal needs to be evaluated and/or treated by a wildife professional. When you speak with a wildlife rehabilitator, please share the information provided below. To locate a wildlife rehabilitator, Click Here

Click here to view advice on reuniting this mammal with its mother.
Squirrels typically nest in cavities such as nestboxes, trees, and inside attics or sheds. And they usually have one or two other "backup" nesting locations. If the mother squirrel discovers that the nesting site was disturbed, she will relocate her babies to one of her alternate nesting locations.

Click here to view advice on reuniting this mammal with its mother.
Squirrels typically nest in cavities such as nestboxes, trees, and inside attics or sheds. If a baby has fallen from its nest and is otherwise healthy, there is a very strong likelihood that its mother will return it to its nest when she comes back to nurse her babies.

Click here to view advice on reuniting this mammal with its mother.
Squirrels typically nest in cavities such as nestboxes, trees, and inside attics or sheds. And they usually have one or two other "backup" nesting locations. If the mother squirrel discovers that the nesting site was disturbed, she will relocate her babies to one of her alternate nesting locations as soon as she feels it is safe.

Without a known nesting site, it will be difficult to attempt to reunite this squirrel with its mother. This squirrel should be taken to a wildlife rehabilitator for evaluation and continued care. To locate a wildlife rehabilitator, Click Here
If you have found an orphaned baby squirrel, you can use this form to determine whether you should take it to a wildlife rehabilitator for continued care or attempt to reunite it with its mother. Additional information for each question can be viewed by hovering over the blue information icon located next to the question. Please contact a wildlife rehabilitator if you should have any additional questions or need further assistance. As with all wild animals, please use caution when handling young wildlife. Wildlife don't understand that you are trying to help them, and even babies can bite.

➠ Step One: Click On The Picture That Matches The Age Of Your Squirrel

Hover over image to enlarge
Click on image to select.
A detailed description will appear on the right of this page

➠ Step Two: Physical Evaluation

Check any of the following boxes IF they apply or check the last box if the squirrel is healthy
Hover over the blue icon for additional information
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Frequently Asked Questions

How do I reunite a squirrel baby with its mom?

Click here to view advice on reuniting this mammal with its mother.
We've included some videos below demonstrating all the different options used to reunite squirrels. There are a couple of important things that were done in each attempt. Visit our Reuniting Baby Squirrels With Mom page for full details.

Here are some youtube videos of successful baby squirrel and mother reunions:

The squirrel "appears" healthy, but I still feel like something is wrong

Your intuition is probably right, and you should have the squirrel evaluated by a wildlife rehabilitator just to confirm whether the squirrel is healthy or not.

Wouldn't it just be easier to take this squirrel to a rehabilitator than try to reunite it with its mother?

For you, perhaps; but a young healthy squirrel will have a much higher chance of surviving long term if it is reunited with and raised by its own mother. And not for the rehabilitator, who will likely be trying to care for dozens of other babies that truly need and would otherwise die, without their care and expertise.

A small, young squirrel is climbing around on a tree. How do I determine if it needs assistance or is orphaned?

Use the photos and descriptions at the top of this page to determine the age of the squirrel. Between 6 and 7 weeks of age, young squirrels will begin to explore a little but still stay close to their nest. If you approach the squirrel and it is 6 or more weeks old, it should instinctively avoid you and crawl back up to the safety of its nest. If it is easily approached, seems lethargic, stays in one place, you hear it repeatedly call out for its mother, or it is younger than 6 weeks old, it may need assistance.

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