Signs of Squirrels in Your Yard (and What to Do)

Squirrel signs are shallow, golf-ball-size digging divots scattered across the lawn (nut caching), stripped bark on branches, emptied bird feeders, and — the expensive one — daytime scurrying or gnawing sounds at the roofline. Squirrels work in daylight; the same signs at night point to rats.

Key signs of squirrels

  • Shallow divots 1–3 inches across scattered over the lawn and beds — dig-and-refill nut caching, not tunnel entrances
  • Bird feeders emptied fast, hanging crooked, or chewed, with seed hulls scattered below
  • Bark stripped in patches from branches and trunks, especially maples, and twig ends clipped and dropped in quantity
  • Chewed holes in ripening tomatoes, corn, and fruit, often one bite taken and the rest dropped
  • Scampering, rolling, or gnawing sounds overhead in early morning and daytime — squirrels are strictly diurnal
  • A chewed gap at the roofline: fascia, soffit corners, gable vents, or a builder's gap by the gutter, often with gnaw marks flaring the opening
  • Leaf nests (dreys) — messy basketball-size balls of leaves high in tree forks

What the evidence looks like

Sign What it looks like Where you'll find it
Caching divots Shallow cone-shaped digs 1–3 inches wide and an inch or two deep, often loosely refilled, with no tunnel below Scattered randomly across lawns, mulch beds, and potted plants, heaviest in fall
Stripped bark and clipped twigs Patches of bark peeled from limbs exposing pale wood; green twig ends littering the ground under a tree Upper branches and trunks of maples, elms, and fruit trees
Feeder raids Feeders drained in hours, bent perches, chewed plastic ports, an acrobat hanging upside down at breakfast Any feeder within a 10-foot leap of a tree, fence, or roof
Roofline entry hole A gnawed opening 1.5–3 inches or larger with fresh chew marks, sometimes with grease or hair at the edges Fascia boards, soffit returns, gable and ridge vents, and gaps where roof planes meet
Daytime attic noise Fast scampering, rolling sounds (nuts), and gnawing shortly after dawn and in daytime — not slow thumps at midnight Attic, eaves, and inside wall cavities near the roofline

Habits worth knowing

The usual suspects are eastern gray squirrels, fox squirrels, and red squirrels — active year-round and strictly during the day, with peaks in early morning and late afternoon. This schedule is your best diagnostic: daytime noise and sightings mean squirrels; nighttime activity points to rats, mice, or flying squirrels.

Squirrels are scatter-hoarders. Each fall they bury thousands of individual nuts an inch or two deep across their range, then dig many of them back up all winter — which is why lawns show waves of shallow divots in fall and again in late winter. The digging is cosmetic and heals quickly.

Squirrels have two breeding seasons in most of the US — late winter and midsummer — and a pregnant female looking for a den site is the classic reason a squirrel chews into an attic. Once inside, gnawing on wood and wiring is the real risk; chewed wire insulation is a documented fire hazard.

A typical yard is visited by several squirrels with overlapping ranges, so removing one animal changes little. Managing food (feeders, fallen nuts) and access (roofline gaps, overhanging limbs) is what actually changes squirrel pressure.

Often confused with

  • Chipmunks — Chipmunks are smaller, striped, and burrow underground — a clean 2-inch hole with no mound. Squirrel digging is shallow scattered divots with no tunnel, and squirrels den in trees and attics, not burrows.
  • Rats — Rats also enter attics and gnaw, but they work at night, leave greasy rub marks and capsule-shaped droppings along their routes, and burrow at ground level near foundations. Daytime noise at the roofline is squirrels.

What to do now

  1. Confirm with timing: note when you hear or see activity — daylight means squirrels, and a dusting of flour by a suspected entry hole will show footprints and direction of travel
  2. Cut off the food subsidy: switch to squirrel-proof (weight-closing) feeders on a baffled pole 10 feet from any launch point, and rake up fallen nuts and acorns
  3. Trim tree limbs back 8–10 feet from the roofline — the standard leap distance — and consider a trunk baffle on isolated trees squirrels use as highways
  4. Protect gardens and pots with hardware-cloth cages or floating row cover; cage individual tomatoes if one animal has learned the habit
  5. Harden the roofline before there's a hole: replace rotted fascia, screen gable and ridge vents with heavy 1/4-inch hardware cloth, and seal builder's gaps with metal flashing
  6. If squirrels are already inside, don't seal anything until you're certain all animals — especially babies in spring and late summer — are out; this is the moment to call a licensed wildlife control professional for an eviction and exclusion done in the right order

What not to do

  • Don't seal the entry hole while animals may be inside — a trapped squirrel will destroy wood, wiring, and drywall trying to escape, and orphaned babies die in the wall
  • Don't trap and drive squirrels 'to the woods'; relocation is illegal or permit-restricted in many states, most relocated squirrels don't survive, and a new squirrel takes the vacancy within days
  • Don't put poison in an attic — no rodenticide is labeled for tree squirrels, it's illegal off-label, and you'll end up with a carcass in a wall cavity
  • Don't rely on ultrasonic repellers, strobe lights, or mothballs; testing shows little effect, and mothball use in an attic is both ineffective and an off-label pesticide violation
  • Don't grab or hand-feed squirrels — bites are deep, and any wild mammal bite needs medical attention

Frequently asked questions

How do I know if squirrels are in my attic and not rats?

Listen to the clock. Squirrels are loud shortly after dawn and during the day — fast scampering and rolling sounds — then quiet at night. Rats and mice do the opposite. Droppings help too: squirrel droppings are barrel-shaped and scattered, rat droppings are capsule-shaped and concentrated along greasy runways.

Are the little holes all over my lawn squirrel damage?

If they're shallow — an inch or two deep, no tunnel at the bottom, often loosely refilled — that's squirrel nut caching, heaviest in fall. It's cosmetic and grass recovers on its own. Holes that go down into a tunnel belong to chipmunks, voles, or rats.

Will squirrels damage my house wiring?

They can. Rodent teeth grow continuously, and squirrels in attics gnaw wood and wire insulation to wear them down; exposed conductors are a genuine fire hazard. If squirrels have been in your attic, have the wiring inspected after they're excluded.

Do squirrel repellents like capsaicin work?

Capsaicin (hot pepper) added to birdseed does deter squirrels without bothering birds, and it's the one repellent with decent evidence. Sprays on structures wash off and need constant reapplication; ultrasonic devices show little effect in testing. Exclusion and feeder management do the durable work.

Clues squirrels leave behind

Yard Holes Shallow Divots in Lawn: Foraging Damage Decoded Shallow divots — little scoops that stop within an inch or three of the surface — are foraging marks, not burrows: squirrels caching and retrieving nuts, skunks drilling for grubs at night, birds probing at dawn, or a dog freelancing. Because three of those four are hunting grubs, a lawn suddenly covered in divots is often really a message about what's living under the turf. Read the guide → Plant Damage Bark Stripped From Trees: Squirrels, Deer, Voles, or Birds? The height of the damage tells you the most: bark gnawed at ground level is usually voles or rabbits, shredded bark from 1 to 4 feet up is deer rubbing their antlers, and stripped patches on upper branches point to squirrels. Neat horizontal rows of shallow holes are a sapsucker's work — and any damage that circles the whole trunk (girdling) puts the tree at real risk. Read the guide → Plant Damage Something Digging in Potted Plants? Here's the Likely Culprit Something digging in your potted plants is most often a squirrel burying or retrieving nuts — the number one cause by far — followed by chipmunks, birds taking dust baths, raccoons hunting grubs at night, or a cat using the pot as a litter box. Daytime digging with small neat pits points to squirrels; pots trashed overnight point to raccoons. Read the guide → Yard Holes Holes in Mulch Beds: Who's Digging Through Your Mulch? Disturbed mulch usually comes down to a simple distinction: mulch flipped and scattered on top means squirrels or birds foraging through it, while an actual hole punched down into the soil beneath means a chipmunk, rat, or cat. Squirrels and chipmunks are the everyday culprits; the pattern of the mess tells you whether you're looking at snacking, caching, burrowing, or a litter box. Read the guide → Plant Damage Holes in My Tomatoes: Which Pest Is Ruining the Fruit? Holes in tomatoes are most often the work of tomato fruitworms (one clean round entry hole), hornworms (large shallow gouges), birds (peck marks in ripe fruit), slugs (rasped pits where fruit touches soil), or squirrels (single bites, fruit carried off). Sunken leathery patches on the bottom of the fruit aren't a pest at all — that's blossom-end rot. Read the guide → Home Exterior Clues Scratching Noises in Walls at Night: What's Living in There? Scratching in your walls at night most often means mice or rats, since both are nocturnal — light, fast scratching suggests mice, while heavier gnawing and movement suggests rats. If the noise happens in daylight, especially at dawn and dusk, squirrels are the likelier tenant. The time of day, the weight of the sound, and where in the house it comes from will narrow it down before you ever see the animal. Read the guide → Home Exterior Clues Chewed Wires and Screens: Rodent Damage and Fire Risk Chewed wires, cables, and window screens are almost always rodent work — mice, rats, or squirrels, whose front teeth grow continuously and must be worn down by gnawing. The size of the tooth marks and where the damage sits tells you which rodent, and chewed electrical wiring in particular is urgent: exposed conductors inside walls are a genuine fire hazard that needs both an electrician and a pest professional. Read the guide → Yard Holes Holes in Flower Beds Overnight? Meet the Night Shift Flower beds dug up overnight are almost always animals hunting food, not making homes: skunks and raccoons dig for grubs and worms in the soft soil, squirrels bury and retrieve nuts, cats use loose beds as litter boxes, and across the South armadillos root through beds nose-first. Each leaves a different style of hole, so one careful morning inspection usually names your visitor. Read the guide →