Same-day pest control in McKinney, Allen, Frisco & Plano. Call before noon.
Fox Squirrel (Ardilla)

Squirrels in Collin County, TX | Identification and Control

Last updated October 2026

Most people call them gray squirrels, but the squirrel in a Collin County attic is usually the eastern fox squirrel (Sciurus niger), a rusty-bellied tree squirrel of about 1.3 to 2.9 pounds. It chews a hole the size of a baseball at a soffit or gable vent, nests in the insulation and gnaws on wiring. Rabies is not the worry. The Texas Department of State Health Services confirmed rabies in 412 animals in Texas in 2024, and not one was a squirrel.

An eastern fox squirrel with its rusty belly and long bushy tail

Scratching and rolling in your attic at first light? Our office sits where McKinney, Plano, Frisco and Allen meet, 5 to 10 minutes from most homes in those four cities. Call and we will find the squirrels, the hole they chewed and whether there are young.

A whole eastern fox squirrel side-on, showing its brownish gray back, rusty orange belly and long bushy tail

Squirrel

Sciurus niger
Also called Fox Squirrel · Gray Squirrel · Ardilla

The eastern fox squirrel is a large tree squirrel that is out by day, buries acorns and pecans, and dens in hollow trees or in attics when it finds a way in. Texas A&M AgriLife Extension calls fox squirrels the most common squirrel species in Texas.

Color
Brownish or grayish back, rusty orange belly and feet
Diet
Acorns, pecans and other nuts, plus new shoots, fruit, seeds and insects
Threat level
Low to people, high to the house
Nesting site
Hollow trees, leaf nests in branches, and attics
Lifespan
Wild squirrels over 4 years old are rare
Young to adult
Eyes open at 5 weeks, on their own at about 3 months
Size
About 20 inches with the tail, 1.3 to 2.9 lb (600 to 1,300 g)
Identification

What Does a Squirrel Look Like?

A big tree squirrel with a brownish gray back, a rusty orange belly and a long, bushy tail

The eastern fox squirrel is brownish or grayish on the back with rusty or reddish fur underneath, cinnamon feet and a bushy tail of cinnamon mixed with black. Texas Tech University’s species account in The Mammals of Texas gives an average total length of 522 mm, about 20 inches, of which about 10 inches is tail, and an adult weight of 600 to 1,300 grams, about 1.3 to 2.9 pounds.

Inside the house, most people hear a squirrel long before they see one. It is out by day, so the scratching, scurrying and rolling of nuts overhead comes at first light and through the day, then stops at dusk. The Internet Center for Wildlife Damage Management notes that fox and gray squirrels get into buildings through holes about the size of a baseball, gnaw on wires and build nests in attics.

Labeled photo of an eastern fox squirrel pointing out its size, brownish gray back, rusty belly, long bushy tail and cinnamon feet, with a chewed soffit hole, a leaf nest, nut shells and an attic nest

How to identify an eastern fox squirrel by its rusty belly and long bushy tail, with the chewed holes, nests and nut shells it leaves behind

Dead GiveawaysThe signs that point to a squirrel rather than a rat or raccoon
  • Scratching, scurrying and rolling overhead at dawn and in the daytime, quiet at night
  • A round, chewed hole about the size of a baseball at a soffit, gable vent or roof corner
  • Squirrels running along the roof or jumping onto it from a tree limb
  • Chewed acorn and pecan shells on the roof, in the gutter or in the attic
  • Leaves, insulation and nesting material packed into one corner of the attic
  • Gnawed wires, pipe insulation or wood trim near the way in
Other Names

Fox Squirrel or Gray Squirrel?

Most people call any squirrel in the yard a gray squirrel, and that is an easy mix-up to make. Texas Tech’s Mammals of Texas places the eastern fox squirrel across the eastern four-fifths of the state and the eastern gray squirrel’s native range in the eastern third, where it lives mainly in dense oak groves and the wooded swamps along streams. So the squirrel in a Collin County attic is usually the fox squirrel.

The species account for the eastern gray squirrel describes a smaller animal, about 18 inches long and 321 to 590 grams, with a white belly rather than a rusty one. That belly is the quickest way to tell them apart. A fox squirrel with a lot of orange in its coat is often called a red squirrel, but the true red squirrel is a smaller northern species. In Spanish any squirrel is an ardilla.

Other names for the eastern fox squirrel
NameWhat it means
Fox squirrelThe usual squirrel in Collin County, with a rusty belly.
Gray squirrelWhat most people call it, but a smaller species with a white belly.
Red squirrelA nickname for a very orange fox squirrel, not the true red squirrel.
ArdillaThe Spanish word for any squirrel.
Tree squirrelThe group fox and gray squirrels belong to, as against ground squirrels.
Look-Alikes

How to Tell a Squirrel from a Roof Rat, Raccoon or Bat in the Attic

All four end up in Collin County attics, and each one is handled differently. Most people never see the animal. The time of day you hear it, how heavy it sounds and the size of the way in tell them apart.

The squirrel compared with the three animals most often blamed for the same attic noises in Collin County
Species Size and Color Key Feature Where Found
Photo of an eastern fox squirrel
Squirrel AKA: Fox Squirrel, Gray Squirrel Sciurus niger This species
About 1.3 to 2.9 pounds and 20 inches long with the tail. Brownish gray back, rusty belly. Scratching and rolling at dawn and by day. A round chewed hole about the size of a baseball. Attics reached from trees and the roof, through soffits, gable vents and roof corners.
Photo of a roof rat
Roof Rat AKA: Black Rat, Ship Rat Rattus rattus
Slimmer and lighter, about 5 to 9 ounces. Brown mixed with black, with a thin, bare tail. Quick scurrying after dark, not by day. Droppings about half an inch long with pointed ends. Attics and roof edges, reached along branches, fences and utility lines, often in the same attic as squirrels.
Photo of a raccoon
Raccoon AKA: Racoon, Coon, Mapache Procyon lotor
9 to 29 pounds, far bigger. Grizzled gray with a black mask and a ringed tail. Heavy thumping like a small person after dark. Soffits and vents torn open rather than chewed. Attics, chimneys and the space under decks, mostly in spring when mothers have young.
Photo of a Mexican free-tailed bat
Bat AKA: Mexican Free-Tailed Bat Tadarida brasiliensis
Small and dark brown, with wings of bare skin and no bushy tail. Squeaking and light fluttering at dusk, and dark staining with droppings piled below a gap. Narrow roofline gaps and gable vents. Bats are protected in Texas and are never trapped.

Squirrel vs Roof Rat in the Attic

The fastest way to tell a squirrel from a roof rat in the attic is the clock. A squirrel is busy at first light and through the day and goes quiet at night, while a roof rat scurries after dark and is quiet by day. Then look at the way in. A squirrel chews a round hole about the size of a baseball, and a rat squeezes through a gap far smaller. Many Collin County attics hold both, so one does not rule out the other.

The Squirrel in Three Numbers

0 of 412

The Texas Department of State Health Services confirmed rabies in 412 animals in Texas in 2024, and 0 of those 412 were squirrels.

Texas Department of State Health Services, 2024

6 to 8 feet

The Internet Center for Wildlife Damage Management advises trimming tree limbs back 6 to 8 feet from a building so squirrels cannot jump onto the roof.

Internet Center for Wildlife Damage Management

4

Texas Tech University’s Mammals of Texas says the average female fox squirrel produces only 4 young a year.

Texas Tech University, The Mammals of Texas

Why Squirrels Score 1 of 3 on People Risk

People Risk for Squirrels

Squirrels are not a danger to people unless someone grabs or corners one. They almost never carry rabies, and the real harm they do is to the house, not to the family in it.

People Risk
1/ 3
Low
Health Risk

Are Squirrels Dangerous?

Not to people who leave them alone. A squirrel runs from people, but one that is grabbed, cornered in a room or caught in a trap will bite and scratch hard with its long front teeth and sharp claws. The wildlife damage reference on tree squirrels notes they bark as a warning and churr when angry, so a squirrel making noise at you is telling you to back off. Never reach into a hole or a nest where young squirrels are, and never try to catch one loose in the house by hand.

Do Squirrels Carry Rabies?

Almost never. In the state’s 2024 report on rabies in animals, the Texas Department of State Health Services confirmed rabies in 412 animals in Texas, mostly bats and skunks, and not one squirrel. The CDC’s rabies prevention recommendations say small rodents, squirrels among them, are rarely infected with rabies and have not been known to pass it to people. A bite still needs washing at once with soap and water and a call to your doctor, as any animal bite does.

Are Squirrel Droppings in the Attic Dangerous?

They are a mess more than a medical worry, but they should still be cleaned up the safe way. Squirrels soak the insulation with urine and leave droppings along their trails and around the nest, and the wildlife damage reference notes urine and droppings pile up below the spot where squirrels come and go. The CDC’s cleanup guide for rodent droppings says never to sweep or vacuum them. Air the space out for 30 minutes, wear gloves, soak droppings and nesting with 1 part bleach to 9 parts water for 5 minutes, then wipe them up.

Context

When Squirrel Activity Needs Fast Action

High Priority

Chewed Wiring in the Attic

Squirrels chewing on electrical lines can start a fire. If you find bare or gnawed wires, have an electrician check them.

High Priority

A Squirrel Loose in the House

Keep children and pets out of the room, close the door on it and do not try to catch it by hand. A frightened squirrel bites.

Moderate

A Bite or Scratch

Rabies is very unlikely, but wash it at once with soap and running water and call your doctor the same day.

Moderate

Young in the Attic

Squeaking in spring or late summer means a litter. Do not seal or block the hole until the mother and young are all out.

Indoors

Why You Have Squirrels in Your Attic

A squirrel in the attic is usually a female looking for a dry, safe place to raise her young. Texas Tech’s species account says fox squirrels prefer hollow trees as dens and nurseries and build leaf nests when no hollow is free. In a Collin County neighborhood of young trees, an attic is the best hollow around. She finds a weak spot, most often a soffit return where a lower roof meets a wall, a gable vent or a gap the builder left, and chews it into a round hole.

What brings squirrels onto a roof is trees and food. Limbs that touch or hang over the roof give them a bridge, and oaks, pecans and bird feeders in the yard keep them close. It is not a sign of a dirty or neglected home. Brand-new roofs with open builder gaps draw squirrels as readily as old ones.

Why Squirrels Score 3 of 3 on Property Risk

Property Risk for Squirrels

Squirrels gnaw. They chew their way into the house through wood and trim, then gnaw on wiring that can start a fire, tunnel through insulation, and soak it with urine and droppings.

Property Risk
3/ 3
High
Habitat

Where Squirrels Live Around Collin County Homes

Outdoors, fox squirrels live in the trees. Texas Tech’s species account describes leaf nests 30 to 50 cm across, about 12 to 20 inches, built high in the branches, and dens in hollow trees when they can find one. Around homes they move into the attic, the space above a garage and sometimes a shed. The wildlife damage reference warns that their gnawing can weaken rafters if left long enough, and that squirrels chewing on electrical lines can cause fires.

Local Presence

Squirrel Pressure Across Collin County

Squirrels in the attic show up in our service notes most often in McKinney, then Frisco, Allen and Plano. Older streets with big oaks and pecans give them a canopy route to the roof, and newer rooflines often leave soffit returns and vents a squirrel can open.

We also find them in Anna, Melissa, Prosper and Celina and Murphy, usually where a tree limb reaches the roof or a builder gap was never closed.

Why Squirrels Score 2 of 3 on Persistence Risk

Squirrel Biology and Seasonal Presence

Squirrels breed twice a year, come back to a den that worked, and keep testing the roofline. A weak patch over an old hole is chewed open again, so removal only lasts when the repair is metal.

Persistence Risk
2/ 3
Moderate
Collin County Pest Calendar
Squirrel Activity in Collin County by Month

Squirrels are active all year in Collin County. Texas Tech’s species account puts fox squirrel mating in January and February and again in May and June, so attics fill with young in spring and again in late summer, and fall brings squirrels onto roofs as they gather and bury nuts.

Jan
Active
Feb
Active
Mar
Peak
Apr
Peak
May
Peak
Jun
Active
Jul
Active
Aug
Active
Sep
Peak
Oct
Active
Nov
Active
Dec
Active
Dormant / Low
Emerging
Active or slowing
Peak

Pattern from published Texas fox squirrel breeding biology (The Mammals of Texas) and Pest Me Off squirrel calls, which come all year and run highest in spring and early fall.

Behavior and Biology

Why Squirrels Keep Coming Back

Young About 3 a litter, two seasons a year The wildlife damage reference gives about 3 young a litter after 42 to 45 days. Texas Tech’s account says the young open their eyes at 5 weeks, first come down to the ground at about 10 weeks and are on their own at 3 months.
Daytime Out by day, home at dusk Fox squirrels are active mainly in daylight. They leave the attic in the morning to feed and come back to the nest in the evening, which is why a hole sealed in the evening can trap them inside.
Range At least 10 acres a season Texas Tech’s account says a fox squirrel uses at least 10 acres in a season, so the squirrel in your attic travels every roof, fence and tree on the street.
Food Buries nuts all fall Acorns and other nuts are the fox squirrel’s natural food. Each nut is buried in its own spot, so a yard with oaks or pecans keeps squirrels coming back through fall and winter.
Why Squirrels Score 2 of 3 on Difficulty to Treat

How to Get Rid of Squirrels

Getting squirrels out of an attic is the easy half. The hard half is making sure no young are left inside and then closing every hole with metal they cannot chew back through.

Difficulty to Treat
2/ 3
Moderate
Wildlife Removal
Management

How Pest Me Off Removes Squirrels

Squirrel removal is four steps, every job. Getting the squirrels out is only half the fix, because the hole they chewed still invites the next one.

Step 1

Inspect and Identify

A free wildlife inspection of the roofline and attic. We confirm it is a squirrel and not a roof rat or raccoon, find the active hole and every other weak spot, and look and listen for young.

Why this step: Squirrels and rats often share an attic, and each needs its own approach. Young left inside is the worst outcome of a squirrel job.
Step 2

Remove the Humane Way

A live trap or a one-way door at the active hole, so the squirrels can leave but not get back in. When there is a litter, we make sure the mother and young all come out.

Why this step: A mother shut out from her young will chew a new hole to reach them, often right beside the old one.
Step 3

Clean Up and Assess

We clear nesting material and droppings from the access area, then show you the damage and the exact way in, from chewed trim to gnawed wiring.

Why this step: A nest left in place keeps its scent, and the next squirrel on the roof goes straight to it.
Step 4

Seal It Out for Good

Every hole and weak spot is closed with metal and mesh a squirrel cannot chew through. This is the rodent proofing and exclusion work that keeps the next animal out.

Why this step: Squirrels chew back through wood, foam and thin patches. Without a metal seal, the next one moves into the same hole.
Pest Me Off
Find the active hole and any young first, get every squirrel out with a live trap or one-way door, clean up the nest, and seal the roofline with metal so nothing chews back in.
Store Products
& Other Companies
Set a trap, catch one squirrel and leave. The young cry in the attic, the hole stays open, and the next squirrel moves in.
Do It Yourself
DIY Steps That Keep Squirrels Away and Steps That Backfire
Cutting off the roof and checking a hole before sealing it works, while sealing in spring or summer and smell repellents make it worse
DIY Management

How to Get Rid of Squirrels Yourself

The best DIY squirrel work keeps them off the roof. The wildlife damage reference on squirrel control puts trimming and sealing ahead of any trap.

1
Cut off the bridge to the roof. Trim limbs back 6 to 8 feet from the house. A tree standing on its own can get a 2-foot band of metal around the trunk 6 feet off the ground so squirrels cannot climb it.
2
Check a hole before you close it. Stuff newspaper loosely into the hole. If it is pushed out within a day or two, squirrels are still using it. Close it only once it stays put, with half-inch wire mesh or sheet metal, never wood or foam.
3
Clean up safely. Never sweep or vacuum droppings or nesting. Air the attic out, wear gloves, soak droppings with 1 part bleach to 9 parts water for 5 minutes and bag them, as the CDC advises for rodent droppings.
DIY Pitfalls

Why Some DIY Responses Fail for Squirrels

Most DIY squirrel trouble comes from sealing a hole while squirrels or their young are still inside, or from trusting a smell to move them out.

Makes It Worse

Sealing the Hole Too Soon

The wildlife damage reference warns against shutting squirrels in from February through August, when young may be inside. The mother chews a new hole, or the young die in the attic and the smell lasts for weeks.

Rarely Works

Mothballs and Smell Repellents

The same reference says mothballs may only discourage squirrels for a while. A mother with young stays put, and mothballs in an attic leave fumes in the house.

Comes Back

Trapping Without Sealing

Catching one squirrel leaves the hole open. With trees and nuts close by, another squirrel finds the same way in.

Operational Questions

Common Squirrel Questions

What kind of squirrel lives in Collin County, a fox squirrel or a gray squirrel?
Usually the eastern fox squirrel, even though most people call it a gray squirrel. Texas Tech’s Mammals of Texas places the fox squirrel across the eastern four-fifths of Texas and the gray squirrel’s native range in the eastern third, mainly in dense oak groves and wooded stream bottoms. A fox squirrel has a rusty orange belly and weighs about 1.3 to 2.9 pounds. A gray squirrel is smaller, with a white belly.
How do I know if I have a squirrel in my attic?
Listen for scratching, scurrying and rolling at first light and through the day, quiet at night. Outside, look for a round chewed hole about the size of a baseball at a soffit, gable vent or roof corner, squirrels running the roofline, and nut shells on the roof or in the gutter. Noise after dark points to rats or a raccoon instead.
Do squirrels carry rabies?
Almost never. The Texas Department of State Health Services confirmed rabies in 412 animals in Texas in 2024 and none was a squirrel, and the CDC says squirrels and other small rodents are rarely infected and have not been known to pass rabies to people. Wash any bite with soap and water and call your doctor all the same.
Will a squirrel bite?
Only when it is grabbed, cornered or trapped, and then it bites and scratches hard. A squirrel loose in the house is frightened, so keep children and pets away, close the door to that room and do not try to catch it by hand.
Can squirrels chew through electrical wiring?
Yes. The Internet Center for Wildlife Damage Management notes that squirrels gnaw on wires, that chewed electrical lines can lead to fires, and that their gnawing can weaken rafters over time. If you find gnawed wires in the attic, have an electrician check them once the squirrels are out.
How big a hole does a squirrel need to get in?
About the size of a baseball for a fox or gray squirrel, according to the national wildlife damage management reference. A squirrel will also chew a smaller gap wider until it fits, which is why soffit returns, gable vents and roof corners are repaired with half-inch wire mesh or sheet metal rather than wood.
When do squirrels have babies in Texas?
Twice a year. Texas Tech’s Mammals of Texas says fox squirrels mate mainly in January and February and again in May and June, with a pregnancy of about 6 or 7 weeks, so young arrive in late winter and spring and again in summer. The young stay in the nest until about 10 weeks old, and the average female raises only 4 young a year.
Are squirrels protected in Texas?
Squirrels are game animals under Texas Parks and Wildlife’s squirrel rules. Collin County is not one of the East Texas counties with a set season, so the state season here runs all year with no bag limit. Those are hunting rules, and city rules still apply inside town, which is one reason squirrels in a house are best handled by a wildlife professional.
What smell keeps squirrels away?
None for long. The wildlife damage reference says mothballs may discourage squirrels only for a while, and a mother with young in the attic will not leave them for a smell. Mothballs in an attic also leave fumes in the house. Trimming limbs back from the roof and sealing holes with metal works far better.
How do I get rid of squirrels?
Trim tree limbs back 6 to 8 feet from the roof and find the hole they use. If squirrels are inside, find out first whether there are young, get them all out with a live trap or a one-way door, clean up the nest, then seal every hole and weak spot with metal or half-inch mesh. Sealing first traps squirrels inside, so a wildlife professional works in that order.
What's Bugging You?

Squirrels in the Attic? We Get Them Out and Seal Them Out.

We find the hole they chewed and any young, get every squirrel out humanely, clean up the nest, and seal the roofline with metal so nothing chews back in. Wildlife removal across McKinney, Allen, Frisco, Plano, and all of Collin County.

12Stops Per Day
Other companies run 20+ stops a day. We cap at 12. That time goes to walking the whole roofline, checking for young before anything is closed, and sealing every weak spot rather than just the hole we found first.