Voles leave a distinctive combination of surface runways, small burrow holes, and gnaw damage on plants and trees. Unlike moles or gophers, voles spend a lot of time above ground eating grass and other vegetation, so their signs are often visible right at the surface. If you’re noticing thin trails through your lawn or small holes without dirt mounds nearby, voles are the most likely culprit.
Surface Runways Through Grass
The most recognizable sign of voles is a network of narrow runways worn into the grass. These trails are about 1.5 inches wide and connect burrow entrances to feeding areas, creating a visible path system across your lawn. You’ll see them as thin lines of flattened, dead, or missing grass running along the ground surface, often partially hidden under taller vegetation or leaf litter.
Runways form because voles travel the same routes repeatedly. Over time, the grass along these paths dies or gets eaten down to nothing. If you part the grass or rake aside fallen leaves, you’ll often reveal an entire highway system crisscrossing your yard. The runways are particularly obvious in spring after snowmelt, when months of hidden winter activity are suddenly exposed.
Small Burrow Entrances
Vole holes are small, typically less than 3 inches in diameter, and appear at ground level with little or no excavated soil around them. This is a key distinction. Moles push up rounded, volcano-shaped mounds of dirt. Gophers leave flatter, fan-shaped mounds with the hole off to one side. Vole entrances are clean and inconspicuous, often tucked at the base of plants, along fences, or at the edge of garden beds where they connect to surface runways.
You may find multiple holes clustered in one area, since voles tend to establish colony-like networks. If you spot several small holes linked by those characteristic 1.5-inch trails through the grass, you’re looking at active vole habitat.
Gnaw Marks on Trees and Shrubs
Voles chew the bark off trees and shrubs at ground level, a behavior called girdling. The gnaw marks are distinctive: roughly 1/8 inch wide, 3/8 inch long, and at least 1/16 inch deep. They appear in irregular patches right at the soil line, not higher up the trunk (that’s more likely rabbits or deer). On young trees and seedlings, this damage can be fatal. A tree that’s been girdled more than 50% around its trunk has a low chance of survival.
Most girdling happens in fall and winter, when other food sources are scarce. Because it occurs under snow cover, you often won’t discover the damage until spring. If a young tree or ornamental shrub suddenly fails to leaf out in spring, check the base for those small, irregular chew marks.
Lawn Damage After Winter
Spring snowmelt is when many homeowners first realize they have a vole problem. The retreating snow reveals dead grass pathways, accumulated droppings along runways, and patches of lawn that look like someone carved trails through the turf with a knife. Tree bark damage also becomes visible for the first time.
The good news is that lawn damage from vole runways is usually cosmetic. Raking out the dead grass and droppings in spring allows new growth to fill in the bare areas. Root damage to garden plants and bark girdling on trees, however, can be permanent.
Voles vs. Moles vs. Gophers
These three yard pests get confused constantly, but the damage they leave behind is quite different. Voles eat plants. They go for grass, gnaw on shrubs and stems near their holes, and chew bark off trees. Moles eat insects, worms, and grubs, not plants. They tunnel underground and push up those distinctive rounded dirt mounds. If a plant disappears entirely, pulled straight down into the ground, that’s a gopher. Gophers favor bulbs and roots and leave flat, fan-shaped mounds.
Voles themselves look like stocky, short-tailed mice. They’re much smaller than gophers (which are closer to the size of a ground squirrel) and unlike moles, they’re frequently spotted above ground. If you’ve seen a small rodent scurrying along a path through your grass, you’ve likely seen a vole.
How to Confirm Active Vole Presence
Finding runways and holes tells you voles have been in your yard, but not necessarily that they’re still active. A simple apple test can confirm current activity. Place small pieces of shingle or thin board over suspected burrow entrances or along runways, spacing them about 15 feet apart. For meadow voles, prop the cover up 3 to 4 inches off the ground so they can move underneath.
After five days, place a half-inch cube of apple under each cover. Check back after 24 hours. If the apple has been nibbled or removed, you have active voles at that location. This method lets you pinpoint exactly where voles are concentrated rather than guessing, which is useful if you’re planning any control measures. Running the test in both fall and spring gives you the clearest picture of seasonal activity.
Where Voles Are Most Likely to Set Up
Voles gravitate toward areas with dense ground cover: thick mulch beds, tall grass, overgrown garden borders, and spots where woods or fields meet your landscaping. These transitional edges are prime vole territory. Heavy mulch around tree bases provides both food access and hiding cover, which is why orchards and ornamental plantings are frequent targets. If your yard has areas of dense, unmowed vegetation adjacent to garden beds or young trees, those are the first places to check for runways and burrow holes.