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How to determine the age of a baby squirrel

Neonate Squirrel
Approximate Age 1 to 3 days old
Skin Pink hairless
Eyes Closed solid with no slips visible
Ears Sealed flat to the head
Weight Approximately 15 grams

1 to 3 days old


One to Two week old squirrel
Skin Slight greyish fur beginning
Eyes Beginning to see actual slits
Ears Beginning to move away from head

One to Two week old squirrel


Three to four week old
Skin Fur is thicker from head to tail
Eyes Eyes are developed. Eyeslits are showing signs of opening
Ears Appearing to be more normal looking
Teeth Lower incisors are emerging

Three to four week old


Five Weeks Old
Skin Fully Furred
Eyes Opening
Teeth Upper incisors beginning to cut through at five weeks old
Movement and behavior Starting to nibble solid foods, at this age the squirrel will not comsume much solid food but the squirrel will be trying to eat it. Crawling movement and more active

Five Weeks Old


Six to Seven Weeks Old
Hair Tail is becoming thicker and fuller
Eyes Fully opened and beginning to focus more clearly on objects. Will see signs of fright of different objects and exposure to humans.
Movement and behavior Walking and beginning to play, eating solids well but still needing formula.

Six to Seven Weeks Old


Eight to ten weeks old
Movement and behavior Very Active, climbing, jumping, hanging from hind legs. Looks like a small adult squirrel, tail is becoming very bushy especially closer to ten weeks of age. At about ten weeks old the squirrel should be able to start cracking hard shelled nuts. Weaning of formula should be done by ten weeks of age, some squirrels will wean off starting at about eight weeks of age.

Eight to ten weeks old


Eleven weeks to 18 weeks
Squirrels in rehab will now be in an outdoor large acclimating enclosure. At this age the squirrels look like adult squirrels though still imature from eleven to 14 weeks of age. In rehab they are ready for release at 18 weeks of age pending on health and maturity.

Eleven weeks to 18 weeks