Shrews are often mistaken for mice, but these tiny mammals are quite different in behavior and biology. Active year-round and common in parts of Rhode Island and Massachusetts, shrews tend to stay outdoors but can occasionally venture close to homes.
Given their aggressive nature and fast metabolism, understanding shrew activity helps homeowners recognize what they’re seeing and when it may be time to act.
At Guardian Pest Control, we provide homeowners with essential information on pest identification and prevention. We also offer pest management services to control infestations. Contact us at (401) 812-3033 for service.
Pest Identification
Shrews are small but distinctive once you know what to look for.
Characteristics include:
- Size – Typically three to five inches long, with a tail about one-quarter to one-half of their body length
- Appearance – Pointed snout, tiny eyes, small ears, dark brown coloring on top with a gray or silver underside
- Habitat – Most often found in woodlands and grasslands, especially areas with moist soil
Signs of a Shrew Infestation
While shrews spend much of their time hidden, they can leave noticeable clues.
Signs of an infestation include:
- Visual signs – Narrow surface tunnels, shallow holes, nests, and small dark pellet-like droppings
- Sounds or smells – Scurrying or scratching noises and a strong, musky odor
- Common locations – Lawns, gardens, wooded edges, and occasionally near foundations
Why Shrews Can Be a Problem
Although shrews primarily feed on insects, their presence can still cause issues. Their constant tunneling may disturb lawns and plant roots, and scattered seeds or damaged garden areas are not uncommon.
Shrews are also one of the few venomous mammals, using venom to subdue prey. While bites to humans are rare, they can cause localized soreness or swelling.
With the ability to produce multiple litters each year, populations can grow quickly under the right conditions.
Seasonal Behavior and Activity Patterns
Shrews are active day and night and do not hibernate. In colder months, they often burrow beneath snow for warmth and protection, which can make winter and early spring a common time for discovery. Seasonal changes that affect insect populations can also influence where shrews choose to forage.
Prevention Tips
You can reduce the likelihood of shrew activity by focusing on environmental factors.
Prevention steps you can take include:
- Limit food sources – Reducing insect populations and storing pet food securely
- Seal entry points – Closing gaps around eaves, attic vents, drainage pipes, and windows
- Maintain the yard – Keeping grass trimmed and clearing woodpiles, leaf piles, and dense vegetation
When to Call a Professional
If shrew activity becomes persistent or begins to affect your property, a professional evaluation can help determine the next steps. Our team at Guardian Pest Control takes a thoughtful, educational approach to pest concerns, helping you understand what’s happening and how to reduce future issues with confidence.
To schedule an appointment, contact us at (401) 812-3033.