Warning! Squirrels Can Overheat in Summer
1. Never place a caged squirrel in direct sunlight.
2. Always provide water and shade.
3. On hot and/or humid days, indoor squirrels should be kept inside.
4. To-be-released squirrels need to be slowly acclimated to summer temps.
5. Never leave indoor squirrels (or unacclimated to-be-released squirrels) unattended outdoors.
6. Take extra care when traveling. Never leave your squirrel in the car without the air-conditioning turned on, even with all the windows open.
Symptoms of Heatstroke
Mild--Damp fur, appears to be sweating, rapid heartbeat and breathing
Moderate--Drooling or "foaming at the mouth," labored breathing, vomiting
Severe--diarrhea (may contain blood or mucous), uncoordination, seizures, collapse
If you see any of these symptoms, bring the squirrel indoors immediately and begin Emergency Cool-Down Procedures:
Emergency Treatment for Heatstroke
Heatstroke is a life-threatening emergency--Do not delay treatment!
Symptoms of Heatstroke
Mild--Damp fur, appears to be sweating, rapid heartbeat and breathing
Moderate--Drooling or "foaming at the mouth," labored breathing, vomiting
Severe--diarrhea (may contain blood or mucous), uncoordination, seizures, collapse
Emergency Cool-Down Procedures
You must get the squirrel cooled down quickly. Seconds count!
1. Bring the squirrel inside.
2. Dip the squirrel in cool water up to his neck.
3. Lay the squirrel down on a damp cloth with his head slightly elevated and turn on a fan.
4. Bathe the squirrel with a cold wet cloth, especially the head and tail areas. Ice packs can be placed around the squirrel (not on him or under him).
5. Offer a small amount of cool water to drink.
Note: Keep the squirrel as quiet and still as possible; exercise will cause him to become more overheated.
For mild cases, the above treatment may be enough. For moderate/severe cases, vet care is required to save the squirrel's life. If you don't have a vet, have someone else call around while you continue the cool-down process.
6. Don't stop the cool-down process, even for a minute.
7. If it's a warm day, run the AC in your car before you transport.
8. Transport the squirrel quickly to the vet, continuing to bathe the squirrel with a cool washcloth while en route (bring some cold water with you).
9. When you get to the vet, tell them it's severe heatstroke. They should rush the squirrel to the back for emergency care immediately.
10. No matter what happens, keep bathing the squirrel in cool water until the squirrel in the vet's hands.
If heatstroke occurs away from home or while traveling. Use the same procedures as above. Use anything you can find to cool the squirrel down. In a pinch, a cold soda or even water from a nearby stream can be used until you can find help.
If you have no access to a vet, try to find a rehabber. If you're on your own, you will need to monitor the squirrel constantly, including his body temperature. Take the squirrel's temperature using a rectal thermometer or a digital ear thermometer. When his temp reaches 103 degrees F, you must stop the cool-down procedures to avoid overcooling. Continue to offer cool water drop by drop.
Most squirrels will not survive moderate/severe heatstroke without IV fluids, which only a vet can provide.
Note: Signs of permanent organ damage may not show up for several hours or even days. The squirrel may seem to recover initially, then get worse later.
A squirrel can develop heatstroke in as little as 10 minutes, even in the shade!