If you’ve noticed squirrels darting through your yard, you may have wondered whether you’re spotting grey or red squirrels. While both species are common throughout the Denver area, they each have unique traits that make them fascinating to observe—and potentially challenging for homeowners. This article breaks down the key differences between these species, offering insights into their appearance, behaviour, and the risks they might pose to your home. 

Whether you’re curious or concerned, let’s explore this red and grey squirrel comparison to help you identify and understand these bushy-tailed visitors.

Grey vs Red Squirrel Differences

When it comes to distinguishing between grey and red squirrels, their physical and behavioural differences are the first places to start. Here’s how you can identify each species:

Appearance  

• Grey squirrels are larger than red squirrels, weighing between 14 to 21 ounces and measuring up to 20 inches from nose to tail. Their fur is predominantly gray with white underbellies, and they often have bushier tails.
• Red squirrels, on the other hand, are smaller, typically weighing 7 to 10 ounces and measuring around 12 to 14 inches in total. Their fur is a distinct reddish-brown colour with a white underbelly, and they often have tufted ears during the winter months.

Behavior  

• Grey squirrels are highly adaptable and thrive in urban and suburban areas like Denver. They’re bold and curious, often seen raiding bird feeders or darting across power lines.
• Red squirrels are more territorial. They are likely to chase away other squirrels from their area, and you’ll find them in wooded settings where conifer trees are abundant.

Habitat  

• Grey squirrels are tree dwellers and make their homes in deciduous forests, parks, and residential neighbourhoods. Surrounding trees near Denver’s Cheesman Park or Washington Park are ideal habitats for them.
• Red squirrels prefer coniferous forests and are less likely to venture into heavily urbanized locations, although you might spot them along the trails near Rocky Mountain National Park.

Understanding these differences can help homeowners identify which type might be residing—or attempting to reside—on their property.

Red and Grey Squirrel Comparison

Beyond physical traits, red and grey squirrels exhibit distinct habits when it comes to survival strategies. Here are some key comparisons:

Food Preferences  

• Grey squirrels bury nuts in the ground, a behaviour called “scatter hoarding” that helps them prepare for winter.
• Red squirrels prefer a single food storage spot known as a “midden,” where they gather and guard their stash of pinecones.

Breeding Seasons  

• Both species breed twice annually, once in late winter and again in midsummer. However, red squirrels tend to have smaller litters compared to grey squirrels, usually between 2–4 babies versus 3–6 in grey squirrels.

Activity Levels  

• Grey squirrels are most active during the early morning and late afternoon, whereas red squirrels are more sporadically active throughout the day.

Taking note of these habits can help you understand the squirrels you encounter, and their presence around your property.

Squirrel Species Identification

Proper squirrel species identification can be crucial if you suspect they’re trying to move into your home. Grey squirrels are more likely to cause issues in residential properties, but red squirrels are no strangers to using attics and crawl spaces for shelter as well.

Signs of Grey or Red Squirrels Inside Your Home  

• Scratching or scurrying noises in your attic or walls, particularly during daylight hours.  
• Small, gnawed holes around soffits, vents, or eaves.  
• Chewed wiring, wooden beams, or insulation.  
• Droppings or nesting materials like twigs, leaves, and shredded fabric.

Tips for Identifying Entry Points  

Inspect your home for entry points. These animals can squeeze through gaps as small as 2 inches! Pay attention to rooflines, fascias, and vents, as these areas are common access points. Grey squirrels, given their size, often chew larger entry holes, while red squirrels are more dexterous and can exploit smaller gaps.

Identify with Observations  

To narrow down whether it’s a grey or red squirrel in your space, keep an eye out for them during their active hours. Their size and colouring can offer key identification clues.

Proper identification ensures you adopt the most effective and humane measures for dealing with the situation.

Risks Grey And Red Squirrels Pose To Homes

Although squirrels might appear harmless at first glance, they can cause significant damage if they gain access to your home. Both grey and red squirrels share the following risks:

• Structural Damage: Squirrels have powerful teeth that can gnaw through wood, aluminum, and even PVC pipes. They are known to create holes in soffits or roof vents, compromising your home’s integrity.
• Electrical Hazards: Chewing on electrical wires is a common habit among squirrels and can lead to serious fire hazards. Grey squirrels are particularly notorious for causing electrical issues.
• Insulation Contamination: Once inside an attic, squirrels often tear apart insulation, reducing its effectiveness. Feces and urine left behind can also pose health risks.
• Health Concerns: Both grey and red squirrels potentially carry parasites such as fleas and ticks. These can spread into your living space if squirrels nest within your home.

Understanding these risks can help you take steps to squirrel-proof your home and address any potential invasions before they escalate.

Addressing Squirrel Issues Safely

If you suspect squirrels have invaded your home, it’s essential to act promptly. Here are some important steps to ensure your property stays safe:

• Assess the Situation  

Look for signs of squirrel activity like those mentioned earlier. The sooner you identify their presence, the easier it is to address.

• Seal Entry Points  

After confirming squirrels have left your home, seal all entry points with durable materials like galvanized steel mesh. This prevents further access.

• Reinforce Vulnerable Areas  

Strengthen areas like soffits, vents, and eaves. Installing barriers or shields on power lines or nearby trees can discourage access to your roof.

• Consult Professionals  

Handling squirrels requires expertise to ensure their safe and humane removal. At Skedaddle, we’re equipped with the tools and experience to secure your home while prioritizing the safety of these animals.

Taking these steps is the best way to protect your property from unwanted visitors.

Keep Your Home Safe With Skedaddle

Squirrels, whether the grey variety more common in Denver neighbourhoods or the occasional red squirrel from nearby forests, are fascinating creatures. But their curiosity and adaptability can lead to problems for homeowners. If you’ve noticed signs of squirrel activity or want to take preventative measures, Skedaddle can help. With over three decades of experience in humane wildlife removal and exclusion, we know how to protect your home without harming these incredible animals.

Contact us today and learn how we can squirrel-proof your property. A safe home starts with Skedaddle!